JP2007299094A - Information processor, information processing method, and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an improved configuration for color determination for an additionally written document with a marker color added on the basis of an attribute and for attribute assignment processing. <P>SOLUTION: In a configuration which analyzes a marker color from a color marker added document based on an attribute for a written document to execute attribute determination processing of document information, an extended registered color region corresponding to a registered color is set on the basis of a history of analysis color information regarding a marker color analyzed document, and when an extracted color, which has been determined as a not-registered color, is included in the extended registered color region, an attribute, which has been set in response to the registered color, is set as an attribute corresponding to data included in a marker color added region of the extracted color. According to the present configuration, even when a time-lapse color change in a marker pen, or an exchange of the pen is executed, attribute assignment based on accurate color determination can be performed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, an information processing method, and a computer program. More specifically, the present invention relates to an information processing apparatus, an information processing method, and a computer program for executing character string extraction / attribute assignment processing with a marker pen performed as index assignment with a color marker.

  In the field of data processing for document documents, for example, attributes for each document area are obtained from document image data, and after classifying the image areas for each attribute, character recognition processing (OCR: Optical Character Recognition) is performed to classify the text data. The process of generating and storing in a database is known as an index extraction process. For example, Patent Documents 1 and 2 are known as prior arts that disclose this index extraction processing.

Also, a pre-determined document form is defined, a write-once area that can be added to this document form is set, position information is embedded in the designated write-on area, and verification with the original is not required when extracting postscript information from the document Patent Document 3 describes a configuration for efficiently acquiring additional write information. Further, Patent Document 4 discloses a processing configuration in which information for identifying a region is embedded in a divided region of a document, and additional information is efficiently extracted from the region when additional information is extracted.
JP-A-5-342326 JP 2002-123815 A JP 2003-271842 A JP 2003-18393 A

  As described above, various techniques have been proposed in which various data included in a document are classified according to type (attribute), that is, categorized and classified and stored as data in which attributes are associated with a storage unit such as a database. However, there is a limit to automating the attribute determination process for the document area included in the document document, and the attribute determination and setting process itself requires processing by a person (operator).

  When attribute determination is performed based on the operator's determination, for example, the date data portion is colored with a red marker, and the document name data portion is colored with a blue marker, based on correspondence information between preset marker colors and attributes. The operator uses the markers of various colors to set the marker colors for the characters on the document.

  Next, the document in which the marker color is set is read by the color scanner, the marker color on the document is discriminated, and the character information to which the marker color is added is decoded by OCR (Optical Character Recognition). Further, when the decrypted character information is stored as text data in the database, an attribute discriminated from the marker color, for example, attribute information such as date and document name is stored in association with the attribute value corresponding to the text data. This process is called a character string extraction / attribute assignment process using a marker pen.

  In such a character string extraction / attribute assignment process using a marker pen, marker color setting for a document is executed by an operator. The operator sets a marker with a color pen of a specified color, but the pen used by the operator may cause a color change due to long-term use. Even if the color is the same [Red], there may be a slight difference in color depending on the pen manufacturer. On the other hand, it is the information processing apparatus that executes the determination of the marker color, and determines the marker color based on specific color value data, for example, specific color information values such as RGB values and Lab values. Therefore, accurate marker color determination may be impossible based on a change in the color of the pen used by the operator, a change in the pen used, and an error in attribute value determination processing may occur.

  The present invention has been made in view of the above-described problems, and when the pen color used by the operator who performs the marker color setting is slightly changed in the write-once setting process using the color marker executed as the attribute setting process. However, an object of the present invention is to provide an information processing apparatus, an information processing method, and a computer program capable of analyzing a correct attribute value by performing marker color recognition that allows color change.

The first aspect of the present invention is:
An information processing apparatus that executes an attribute determination process for document information based on a marker color added to a document,
A color area extraction unit that inputs a postscript document in which a marker color is added to the document and acquires color information of a marker color postscript area on the postscript document;
A registered color determination unit that determines whether the color included in the color region extracted by the color region extraction unit is a registered color or a non-registered color that is registered in advance as an additional recording marker color;
An extended registered color area setting unit for setting an extended registered color area corresponding to the registered color based on the history of the analysis color information in the marker color analyzed document;
An extracted color determining unit that determines whether or not an extracted color determined as a non-registered color by the registered color determining unit is included in the extended registered color region;
If the extracted color determining unit determines that the extracted color is included in the extended registered color area, the attribute set corresponding to the registered color is included in the marker color additional recording area of the extracted color. An attribute determination unit that determines the attribute corresponding to
A registered color update processing unit for additionally setting a color value included in the color region set in the extended registered color region setting unit as a new registered color;
There is an information processing apparatus characterized by having.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the extended registration color region setting unit generates an approximate curve based on a plurality of history points of color values in the color space of the marker color of the analyzed document, A configuration in which a projection point based on the color value data of the previous extracted color is set on the generated approximate curve, and a process of setting a conical region having the projection point as a vertex as an extended registered color region corresponding to the registered color is executed. And the extracted color determining unit is configured to execute a process of determining whether or not the extracted color determined as a non-registered color by the registered color determining unit is included in the conical region.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the extended registered color area setting unit uses a neighboring point on the approximate curve corresponding to the color value of the previous extracted color as a vertex, and includes an approximate curve and a color value history This is characterized in that a process for setting a conical region having a spread in a new direction as an extended registered color region is executed.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the extended registration color area setting unit executes a process of setting a predetermined radius r and a cone area having a height l as an extended registration color area. It is characterized by being.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the extended registration color region setting unit generates an approximate curve based on a plurality of history points of color values in the color space of the marker color of the analyzed document, The configuration is such that a cylindrical region having the generated approximate curve as a central axis is set, and the cylindrical region is set as an extended registered color region corresponding to a registered color, and the extracted color determining unit is the registered color determining unit The extracted color determined to be a non-registered color in step 1 is configured to execute processing for determining whether or not the extracted color is included in the cylindrical region.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the extended registration color area setting unit is configured to execute a process of setting a cylindrical area having a radius r set in advance as an extended registration color area. To do.

Furthermore, the second aspect of the present invention provides
An information processing apparatus that executes an attribute determination process for document information based on a marker color added to a document,
A color area extraction unit that inputs a postscript document in which a marker color is added to the document and acquires color information of a marker color postscript area on the postscript document;
A registered color determination unit that determines whether the color included in the color region extracted by the color region extraction unit is a registered color or a non-registered color that is registered in advance as an additional recording marker color;
An extraction color counting unit that counts the number of extractions of each marker color determined to be a corresponding color of the same attribute;
A count number verification unit that performs comparison between the number of extractions of each of the marker colors and the number of extractions corresponding to each marker color in advance;
In the count number verification unit, the addition result of the marker color less than the planned extraction number and the non-registered color extraction count detected by the registered color determination unit is the planned extraction number of marker colors less than the planned extraction number. On the condition, the non-registered color is determined to be the marker color after the change of the marker color less than the number of extraction, and a registered color update processing unit for executing the update of the registered color,
An attribute determination unit for determining a color area newly determined as a registered color in the registered color update processing unit as an attribute set corresponding to the old registered color as an attribute corresponding to data included in the color area;
There is an information processing apparatus characterized by having.

Furthermore, the third aspect of the present invention provides
In the information processing apparatus, an information processing method for executing attribute determination processing of document information based on a marker color added to a document,
In the color region extraction unit, a color region extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional region on the postscript document;
A registration color determination step for determining whether the color included in the color region extracted in the color region extraction step is a registered color or a non-registered color registered in advance as a postscript marker color in the registered color determination unit; ,
In the extended registration color area setting unit, an extended registration color area setting step for setting an extended registration color area corresponding to the registered color based on the history of analysis color information in the marker color analyzed document;
In the extraction color determination unit, an extraction color determination step for determining whether or not the extraction color determined as a non-registered color in the registration color determination step is included in the extended registration color region;
In the attribute determination unit, if it is determined in the extracted color determination step that the extracted color is included in the extended registered color area, the attribute set corresponding to the registered color is added to the marker color additional recording area of the extracted color. An attribute determination step for determining the attribute corresponding to the data included in the
In a registered color update processing unit, a registered color update processing step of additionally setting a color value included in the color area set in the extended registered color area setting step as a new registered color;
There is an information processing method characterized by comprising:

  Furthermore, in one embodiment of the information processing method of the present invention, the extended registered color region setting step generates an approximate curve based on a plurality of history points of color values in the color space of the marker color of the analyzed document, In the step of setting a projection point based on the color value data of the previous extracted color on the generated approximate curve, and setting a cone region having the projection point as a vertex as an extended registered color region corresponding to the registered color And the extracted color determining step is a step of executing a process of determining whether or not the extracted color determined to be a non-registered color in the registered color determining step is included in the conical region.

  Furthermore, in one embodiment of the information processing method of the present invention, the extended registered color region setting step includes a color value history including an approximate curve, with a neighboring point on the approximate curve corresponding to the color value of the previous extracted color as a vertex. This is a step of executing a process of setting a conical region having a spread in a new direction as an extended registered color region.

  Furthermore, in an embodiment of the information processing method of the present invention, the extended registration color area setting step is a step of executing a process of setting a cone area having a preset radius r and height l as an extended registration color area. It is characterized by being.

  Furthermore, in one embodiment of the information processing method of the present invention, the extended registered color region setting step generates an approximate curve based on a plurality of history points of color values in the color space of the marker color of the analyzed document, A step of setting a cylindrical region having the generated approximate curve as a central axis and executing the process of setting the cylindrical region as an extended registered color region corresponding to a registered color, and the extracted color determining step is the registered color determining step The step of executing a process of determining whether or not the extracted color determined to be a non-registered color is included in the cylindrical region.

  Furthermore, in one embodiment of the information processing method of the present invention, the extended registration color area setting step is a step of executing a process of setting a cylindrical area having a radius r set in advance as an extended registration color area. To do.

Furthermore, the fourth aspect of the present invention provides
In the information processing apparatus, an information processing method for executing attribute determination processing of document information based on a marker color added to a document,
In the color region extraction unit, a color region extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional region on the postscript document;
A registration color determination step for determining whether the color included in the color region extracted in the color region extraction step is a registered color or a non-registered color registered in advance as a postscript marker color in the registered color determination unit; ,
In an extraction color counting unit, an extraction color counting step for counting the number of extractions of each marker color determined to be a corresponding color of the same attribute;
In the count number verification unit, a count number verification step of executing a comparison between the number of extractions of each of the marker colors and the number of extractions corresponding to each marker color in advance,
In the registered color update processing unit, a marker color that is less than the planned number of extractions is obtained by adding the marker color that is less than the planned number of extractions in the count number verification step and the extraction count of the non-registered colors that is detected in the registered color determination step. A registration color update processing step for determining that the non-registered color is a marker color after changing the marker color less than the planned extraction number, and executing the update of the registered color, on the condition that the number of extraction is
In the attribute determination unit, the color area newly determined as the registered color in the registered color update processing step is determined as the attribute corresponding to the data included in the color area as the attribute set corresponding to the old registered color. An attribute determination step;
There is an information processing method characterized by comprising:

Furthermore, the fifth aspect of the present invention provides
In the information processing apparatus, a computer program for executing an attribute determination process of document information based on a marker color added to a document,
In the color area extraction unit, a color area extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional area on the postscript document;
A registered color determining step for determining whether the color included in the color region extracted in the color region extracting step is a registered color or a non-registered color registered in advance as an additional marker color; ,
In the extended registration color area setting unit, an extended registration color area setting step for setting an extended registration color area corresponding to the registered color based on the history of analysis color information in the marker color analyzed document;
In the extraction color determination unit, an extraction color determination step for determining whether or not the extracted color determined as a non-registered color in the registered color determination step is included in the extended registered color region;
In the attribute determination unit, if it is determined in the extracted color determination step that the extracted color is included in the extended registered color area, the attribute set corresponding to the registered color is added to the marker color additional recording area of the extracted color. An attribute determination step for determining the attribute corresponding to the data included in
In a registered color update processing unit, a registered color update processing step for additionally setting a color value included in the color area set in the extended registered color area setting step as a new registered color;
In a computer program characterized by causing

Furthermore, the sixth aspect of the present invention provides
In the information processing apparatus, a computer program for executing an attribute determination process of document information based on a marker color added to a document,
In the color area extraction unit, a color area extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional area on the postscript document;
A registered color determining step for determining whether the color included in the color region extracted in the color region extracting step is a registered color or a non-registered color registered in advance as an additional marker color; ,
In the extraction color counting unit, an extraction color counting step for counting the number of extractions of each marker color determined to be a corresponding color of the same attribute;
In the count number verification unit, a count number verification step for executing a comparison between the number of extraction of each of the marker colors and the number of extractions corresponding to each marker color in advance,
In the registered color update processing unit, a marker color that is less than the planned number of extractions is obtained by adding the marker color that is less than the planned number of extractions in the count number verification step and the extraction count of the non-registered colors that is detected in the registered color determination step. A registration color update processing step for determining that the non-registered color is a marker color after changing the marker color less than the planned extraction number, and executing the update of the registered color, on the condition that the number of extraction is
In the attribute determination unit, the color area newly determined as the registered color in the registered color update processing step is determined as an attribute corresponding to the data included in the color area as an attribute set corresponding to the old registered color. An attribute determination step;
In a computer program characterized by causing

  The computer program of the present invention is, for example, a storage medium provided in a computer-readable format for a computer system capable of executing various program codes, a communication medium, for example, a recording medium such as a CD or a DVD, Or it is a computer program which can be provided by communication media, such as a network. By providing such a program in a computer-readable format, processing corresponding to the program is realized on the computer system.

  Other objects, features, and advantages of the present invention will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

  According to the configuration of one embodiment of the present invention, for example, a character string extraction / attribute assignment process with a marker pen for a document document, that is, a marker color is analyzed from an additional recording document that has been additionally written with a color marker, and is based on the marker color. In the configuration in which the attribute determination process of document information is executed, an extended registered color area corresponding to the registered color is set based on the history of the analyzed color information in the marker color analyzed document, and the extracted color determined to be a non-registered color Since the attribute set corresponding to the registered color when included in the extended registered color area is set as the attribute corresponding to the data included in the marker color additional recording area of the extracted color. Even when a color change or a pen change is executed, it is possible to assign an attribute based on accurate color determination.

  Further, according to the configuration of one embodiment of the present invention, the number of extractions of each marker color determined as the corresponding color of the same attribute is counted, and the comparison with the planned number of extractions corresponding to each marker color is performed in advance. Since the configuration is such that the marker color after the change of the marker color less than the planned number of extractions is determined and the registered color is updated based on this determination information, automatic update without performing the registered color update process by the operator And efficient processing is realized.

Details of an information processing apparatus, an information processing method, and a computer program according to embodiments of the present invention will be described below with reference to the drawings. The description will be made according to the following items.
1. 1. Outline of character string extraction / attribute assignment processing with a marker pen Example of processing allowing change in marker color (2.1) Example of processing corresponding to color change of marker pen (2.2) Example of processing 1 corresponding to replacement of marker pen (exchange to same system color)
(2.3) Processing example 2 corresponding to replacement of marker pen (exchange to a different color)
3. Configuration of information processing equipment

[1. Outline of character string extraction / attribute assignment processing with marker pen]
First, an outline of character string extraction / attribute assignment processing using a marker pen will be described with reference to FIGS. 1 and 2. Character string extraction / attribute assignment processing using a marker pen performs, for example, a process in which an operator checks information such as a character string on a document with a marker of a specific color set according to a category for a document document, In this process, the document after this processing is read by the scanner, the marker color is discriminated from the read image data, the information on the document is classified, and stored in the database as index information for the document.

For example, if the document is a product quote, etc., depending on the color of the marker,
Orange: purchase price,
Green: Purchased item
Blue: Client,
Red: Respondent,
The marker colors used in advance are associated with each other according to the type of information, and the operator selects information corresponding to these pieces of information from the document, and checks with the markers assigned to each. Thereafter, in an information processing apparatus such as a PC, the color information of the marker is acquired from the image data read by the scanner, and the document information of the indicated portion of each color information is converted into data by, for example, character recognition (OCR) processing. And stored in the database as index information corresponding to the document document.

  For example, the information processing apparatus 51 illustrated in FIG. 1 outputs a document document stored in the database 54 via the printer 52. This is an original document 11 shown in the figure. The operator adds information to the original document 11 using a marker based on the correspondence between the preset information type and the use marker color. This result is the postscript document 12 shown in the figure.

For example, red, blue, and green markings 21 to 23 are made on the postscript document, and these are marked based on a predetermined rule. For example, the correspondence between the marker color and the information type (attribute)
Orange: purchase price,
Green: Purchased item
Blue: Client,
Red: Respondent,
Is set as The postscript document 12 is read by the scanner 53 and subjected to data processing in the information processing apparatus 51, and index information setting processing corresponding to the processing target document document is performed.

With reference to FIG. 2, a specific example of character string extraction / attribute assignment processing by the marker pen executed in the information processing apparatus 51 will be described. The postscript document 100 shown in FIG. 2 is the postscript document 100 in which the marker color is set by the operator. The correspondence between marker colors and attributes
Orange: purchase price,
Green: Purchased item
Blue: Client,
Red: Respondent,
It is.

The marker color additional recording area 101 of the additional recording document is an area where characters of “scanner” are recorded. The operator determines that the attribute of the marker color additional recording area is “purchased product” and is set for the purchased product. Marker color is set using marker color = [green].
The marker color additional recording area 102 is an area in which the characters “ST123” are recorded. The operator determines that the attribute of the marker color additional recording area is [requester identifier (requester No.)], and asks the requester. The marker color is set using the marker color = [blue].

The marker color additional recording area 103 is an area in which the characters “Company B” are recorded. The operator determines that the attribute of the marker color additional recording area is “respondent”, and the marker color set for the respondent = Use [Red] to set the marker color.
The marker color additional recording area 104 is an area where characters of “¥ 2120” are recorded. The operator determines that the attribute of the marker color additional recording area is “purchase price”, and the marker color set for the purchase price. = Use [Orange] to set the marker color.

The additional writing document 100 is read by the scanner 53 and input to the information processing apparatus 51, and character string extraction / attribute assignment processing is performed by the marker pen. The storage unit of the information processing apparatus 51 stores a marker color attribute correspondence table 71 indicating correspondence between marker colors and attributes shown in the figure. That is,
Marker color = orange: attribute = purchase price
Marker color = green: attribute = purchased item,
Marker color = blue: attribute = requester,
Marker color = red: attribute = respondent,
It is a table having correspondence information between these marker colors and attributes.

  The information processing apparatus 51 acquires marker color information from the image data read by the scanner, and refers to the marker color attribute correspondence table 71 to determine attributes such as character information in the setting area of each color information. The character information in the setting area of each color information is converted into text data by, for example, character recognition (OCR) processing and stored in the database 54 together with attribute values.

  An example of data stored in the database is analysis data 72 shown in the figure. The analysis data 72 is a table storing data classified for each attribute corresponding to each color of the color marker. As described above, the information processing apparatus 51 classifies and arranges the data read by the character string extraction / attribute assignment processing with the marker pen of each additional writing document for each attribute, and generates the analysis data 72 shown in the figure. Store in the database 54. Note that the analysis data 72 shown in the figure shows an example of data that can be generated by the character string extraction / attribute assignment process using the marker pen, and various other forms of data can be generated.

  Thus, efficient data organization is possible by the character string extraction / attribute assignment processing using the marker pen. However, as described above, the marker color setting for the document is executed by the operator. The operator sets a marker with a color pen of a specified color, but the pen used by the operator may cause a color change due to long-term use. Even if the color is the same, for example, [red], a slight color difference may occur depending on the manufacturer of the pen used. On the other hand, it is the information processing apparatus that executes the determination of the marker color, and determines the marker color based on specific color value data, for example, specific color information values such as RGB values and Lab values. Therefore, accurate marker color determination may be impossible based on a change in the color of the pen used by the operator, a change in the pen used, and an error in attribute value determination processing may occur.

  In the information processing apparatus of the present invention, even when the pen color used by the operator who performs the marker color setting changes slightly, the correct attribute value can be analyzed by performing the marker color recognition that allows the color change. An example of processing executed by the information processing apparatus of the present invention will be described with reference to FIG.

[2. Example of processing that allows change in marker color]
The processing executed by the information processing apparatus of the present invention with reference to FIG. 3 and below, that is, the marker color recognition that allows the color change is performed even when the color of the pen used by the operator who performs the marker color setting changes slightly. A configuration example for setting correct attribute values will be described.

(2.1) Processing Example Corresponding to Marker Pen Discoloration First, a specific example in which a color change of a marker pen used by an operator occurs will be described with reference to FIG. FIG. 3A is a marker color attribute correspondence table similar to that described above with reference to FIG. That is,
Marker color = orange: attribute = purchase price
Marker color = green: attribute = purchased item,
Marker color = blue: attribute = requester,
Marker color = red: attribute = respondent,
It is a table having correspondence information between these marker colors and attributes.

  Based on the correspondence information, the operator sets a marker color for the document. FIGS. 3B1 and 3B2 show examples in which the color change of the marker pen occurs. FIG. 3B1 shows an example of marker color setting with an orange marker color. In the additional writing of the orange marker for the first document, the character color (for example, black ink) on the document adheres to the marker, and in the first marker color additional recording area 201, the range from the left end to the right end. A color change has occurred. Specifically, the left end of the marker color additional recording area 201 is bright orange, but at the right end, the color of characters on the document (for example, black ink) is mixed to become a dark orange.

  Further, if the operator adds the marker color to the second document as it is, the operator uses a marker pen in which the character color (for example, black ink) on the document is attached and changed color. The entire marker color additional recording area 202 becomes dark orange. Further, in the second sheet, the character color on the document is mixed and the marker color is changed. If this is repeated a plurality of times, the discoloration becomes severe. For example, the nth sheet clearly changes to a color different from the first orange marker color.

  Since the information processing apparatus that performs color analysis performs color analysis based on color information values such as RGB and Lab, for example, Lab corresponding to the first orange marker color is registered information (standard designated color). Is recorded in the information processing apparatus, the Lab value of the marker color additional recording area 203 of the n-th orange marker color has a value different from the registered information, and thus is determined to be a color different from the registered orange color. The attribute value corresponding to the color is not recognized.

  FIG. 3B2 shows an example of marker color setting using a blue marker color. In the additional writing of the blue marker for the first document, the vermilion color (for example, red) of the seal on the document is attached to the marker, and the first marker color additional recording area 221 extends from the left end to the right end. There is a color change in the range. Specifically, the left end of the marker color additional recording area 201 is blue, which is the original marker color, but the red color on the document (for example, red) is mixed to form a mixed color of red and blue at the right end. .

  Furthermore, if the operator adds the marker color to the second document as it is, the marker pen changed to the mixed color of red and blue is used, and the second marker color additional area 222 is The whole becomes a mixed color of red and blue. In addition, the second sheet is similarly mixed with the seal color on the document, and the marker color is changed. If this is repeated a plurality of times, the discoloration becomes severe. For example, the nth sheet clearly changes to a color different from the first blue marker color.

  In this case, the color value (for example, Lab value) of the n-th marker color additional recording area 223 is different from the registered information (Lab value) of the information processing apparatus, and thus is determined to be different from the registered blue color. Therefore, the attribute value corresponding to blue is not recognized.

  The information processing apparatus according to the present invention executes color analysis and attribute value setting processing that allows such a change in marker color. An example of color analysis processing executed by the information processing apparatus of the present invention will be described with reference to FIG.

  In the processing example of FIG. 4, when the marker color causes a color change according to the number of uses, the registered color information of the information processing apparatus is updated according to the number of uses of the marker color to change the color of the marker color. It is a figure explaining the example of a process which performs the color discrimination which followed.

FIG. 4A shows a distribution of Lab values corresponding to marker color reading information corresponding to a certain attribute extracted from a document with a marker added. An information processing apparatus that performs color analysis holds a Lab value corresponding to each attribute-corresponding color as registration information. Note that Lab is
L: Lightness index a: Chromaticity b: Chromaticity These are constituted by these values. For example, attribute = purchase price: marker color = orange [(L, a, b) = (80, 20, 80)],
Attribute = Purchased product: Marker color = Green [(L, a, b) = (80, −70, 70)]
Attribute = Requester: Marker color = Blue [(L, a, b) = (75, −30, −30)]:
Attribute = respondent: marker color = red [(L, a, b) = (80, 50, −25)]:
Lab values corresponding to such attribute-corresponding colors are stored as registration information in the storage unit of the information processing apparatus that performs color analysis and attribute determination. The information processing apparatus performs comparison between the Lab value of the marker color setting area acquired from the document and the Lab value as registration information, performs color determination of the additional marker color, and executes attribute analysis.

  FIG. 4A shows a distribution of Lab values corresponding to read information of a marker color corresponding to a certain attribute extracted from a document with a marker added, for example, orange. Even if the marker color added by the operator is the same color, it changes depending on the pen pressure and the ink on the document document described with reference to FIG.

  In the comparison process between the marker color and the registered color value, a process for setting a slight error as an allowable error is performed. However, if a change in marker color as described above with reference to FIG. 3 occurs, the difference from the registered color value (L, a, b) increases, and may be outside the allowable error range. The correct attribute value cannot be set.

  Therefore, in the present processing example, the information processing apparatus analyzes the number of times the marker color is used and the change in the detected color, and updates the registered color information (Lab) of the information processing apparatus based on the analysis result.

FIG. 4B is a diagram for explaining the registration color information update processing executed in the information processing apparatus of the present invention. The color values 271 to 275 shown in FIG. 4B are transitions of a and b values as color information in the Lab color space of the marker additional recording setting area of the same marker color (for example, orange) read from the marker additional recording document. Is shown. That is,
The color value 271 of the first document is (L, a, b) = (85, 6, 85)
The color value 272 of the second document is (L, a, b) = (85, 20, 85)
The color value 273 of the third document is (L, a, b) = (85, 30, 70)
The color value 275 of the nth document is (L, a, b) = (85, 70, 40).
Thus, even for the same color marker (for example, orange), the color value of the marker color changes according to the number of documents, that is, the number of times the marker is used. FIG. 4B shows the color transition in a two-dimensional space consisting only of ab in Lab.

  For example, when Lab = (85, 6, 85), which is the color value 271 of the first document, is registered as an orange-compatible color value in the information processing apparatus, the color value of the marker area read from the additional writing document is , Lab = (85, 6, 85) and within a preset allowable error range, the marker color setting area is determined to be an orange marker setting area. However, when a color change occurs as described with reference to FIG. 3, it is out of the allowable error range, and setting of attribute values corresponding to orange cannot be performed. For example, the marker additional color of the nth document shown in FIG. 4B is a discolored orange color value 275: Lab = (85, 70, 40), which is not an allowable error range but is determined to be orange. Not executed.

In the processing example of the information processing apparatus according to the present invention described with reference to FIG. 4, the registered color information is sequentially updated according to the number of documents for which additional writing has been executed.
First, it is assumed that Lab = (85, 6, 85), which is the color value 271 of the first document, is registered color information corresponding to the initial orange color.
Lab = (85, 20, 85), which is the color value 272 of the second document, is within the allowable error range of the registered color information [Lab = (85, 6, 85)] and is orange in the information processing apparatus. Is recognized as a marker setting area.

  Here, the information processing apparatus has Lab = (85, 6, 85), which is the color value 271 of the first document, and Lab = (85, 20, 85), which is the color value 272 of the second document. Is set on the Lab space. This is a conical region 281 having a height l (el) and a radius r shown in the figure. The height l is set to be equal to or greater than the distance between the color value 271 of the first document and the color value 272 of the second document. For example, when the distance between two points is L, it is set as l = L + Δl. Δl is determined in advance as a value of 0 or more in consideration of an allowable error. The radius r of the bottom surface of the cone is also set in advance based on the allowable error.

  By setting the cone as an extended registration color area in the Lab space as needed according to the number of markers to be additionally written, the change in the marker color is followed. For example, the measured color value (Lab) of the color marker setting area of the third document is a high value set based on the color value (Lab) acquired from the previous (first and second documents). If it exists in the cone area 282 having the radius l and the radius r, it is determined that the setting color of the color marker setting area is orange. Further, the measured color value (Lab) of the color marker setting area of the fourth document is a high value set based on the color value (Lab) acquired from the previous (first to third documents). If it exists within a cone of l (el) and radius r, it is determined that the setting color of the color marker setting area is orange. Thereafter, the same processing is repeated.

  The shape and set position of the cone are determined by an approximate curve defined by a plurality of measurement color values up to the previous time, in addition to the above-described height l (el) and radius r. Specifically, first, an extracted color history up to the previous time and an approximate curve of the extracted color are calculated. The approximate curve is a curve set based on a plurality of measurement color values (Lab values) up to the previous time, and approximate curves based on various processes such as linear approximation, polynomial approximation, and moving average can be used. Next, the apex (starting point) of the cone is set on the approximate curve. This vertex is set by projecting the Lab value of the previous extracted color onto an approximate curve. For example, a neighboring point on the approximate curve corresponding to the Lab value of the immediately previous extracted color, that is, a point on the approximate curve that is the shortest distance from the Lab value of the immediately previous extracted color is set as the apex (starting point) of the cone. A cone having a length l and a radius r with the projection point as the starting point (vertex) is set. The cone includes an approximate curve and is set so that the spread (bottom surface) is set in a new direction of the color value history.

  For example, the conical region 282 shown in FIG. 4 has a shape and a set position depending on an approximate curve 291 defined by two measurement color values until the previous time (first to second times), a height l (el), and a radius r. Is determined. Specifically, for example, the approximate curve 291 is set inside or on the side surface of the conical region 282. In the example shown in the figure, the moving direction of the second document color value 272 from the first document color value 271 is a direction in which the a value increases and the b value decreases in Lab as color information. . In this case, it is predicted that the third sheet, the fourth sheet,... Based on this estimation, a conical region 282 along the approximate curve 291 is set. In other words, a cone is set in which an area is set in a direction in which the a value increases and the b value decreases.

  The starting point (vertex) of the cone is a point obtained by projecting the color value 272 of the second document onto an approximate curve set based on the color value 271 of the first document and the color value 272 of the second document. To do. A conical region 282 having a height l (el) and a radius r along the approximate curve 291 is set with the projection point of the color value 272 of the second document on the approximate curve 291 as a vertex. As the approximate curve, approximate curves based on various settings such as linear approximation, polynomial approximation, and moving average can be used.

  In the same manner, the color value 273 of the third document on the approximate curve 292 is set on the approximate curve 292 based on the first to third measurement values by setting a spreading area in the direction in which the a value increases and the b value decreases. A cone having a height l (el) and a radius r with the projection point as a vertex is set. This process is repeated, and if there is a measurement value inside each cone, it is determined that the color corresponds to that attribute (here, orange).

  When this is repeated, the region where the nth measurement value is determined to be orange is a region defined by the conical region 283 shown in the figure. The conical region 283 is a cone having a height l (el) and a radius r with the projection point of the color value 274 of the n−1th document on the approximate curve 293 based on the first to (n−1) th measurement values. It is. As a result, Lab = (85, 70, 40), which is the color value 275 of the nth document, is included in the Lab space defined by this conical region 283, and this color Lab = (85, 70, 40). ) Is determined to be orange.

  As described above, the information processing apparatus according to the present invention updates the color region determined as the attribute-corresponding color by following the marker color that changes due to the repetition of the marker addition process, and thus has been described with reference to FIG. Even when the color change of the marker occurs, accurate color analysis and attribute determination can be performed without erroneous recognition.

  In the example described with reference to FIG. 4, the processing example in which the cone is set according to the number of documents and the color area is updated has been described. However, the cone is set according to the number of additional recording processes using the marker. In this case, the color region may be updated. For example, such a setting is effective in a configuration in which additional processing is executed with the same marker at a plurality of locations in one document.

  With reference to the flowchart shown in FIG. 5, the sequence of this processing example executed in the information processing apparatus will be described. First, the information processing apparatus inputs a scanned image in step S101. This scan image is a scan image of a marker-added document in which the marker color is additionally recorded by the operator selecting the marker color according to the marker color / attribute correspondence table shown in FIG. In step S102, a character analysis (OCR) process is executed. In this character analysis, character analysis of the entire document may be performed, or character analysis may be performed by selecting only the marker color setting region.

  In step S103, a color extraction process is executed. A color different from the recorded color of the original background of the document and the original characters is extracted. The color extracted individually may include not only the marker color registered in the table but also a color different from the marker color not registered in the table. This occurs, for example, due to the mixing with the original ink on the document as described above with reference to FIG.

  In step S104, it is determined whether each color extracted in step S103 is a marker color (registered color) registered in the table or an unregistered color (unregistered color).

  Next, in step S105, an approximate curve based on the history of extracted colors and the extracted colors up to the previous time is calculated. This is the process described with reference to FIG. 4 and is a preliminary process for determining whether or not the color value extracted this time corresponds to the registered color. For example, in the Lab space, the color values of the extracted colors up to the previous time are set, and an approximate curve based on the color values is set. As described above, the approximate curve is a curve set based on a plurality of measurement color values (Lab values) up to the previous time, and approximate curves based on various processes such as linear approximation, polynomial approximation, and moving average can be used. It is.

  Next, in step S106, the apex (starting point) of the cone is set on the approximate curve. This vertex is set by projecting the Lab value of the previous extracted color onto an approximate curve. For example, the point on the approximate curve that is the shortest distance from the Lab value of the immediately previous extracted color is set as the apex (starting point) of the cone. Next, in step S107, a cone having a length l and a radius r starting from the projection point set in step S106 is set. The cone is set so that the spread (bottom surface) is set in the direction including the approximate curve.

  Next, in step S108, an analysis process is performed to determine whether or not the color value of the current extracted color exists within the set cone area. If it is determined in step S109 that the color value of the current extracted color exists in the set cone area, the process proceeds to step S110, and in step S109, the color value of the current extracted color does not exist in the set cone area. If it is determined that the extracted color is not a registered color, the process ends (if there is a next document, the process proceeds to the next document).

  If it is determined in step S109 that the color value of the current extracted color exists within the set cone area, it is determined that the extracted color is a registered color, and in step S110, the color value information of the registered color corresponding to the attribute. Update. That is, the color information update is performed for the color value acquired this time, assuming that it is the color value corresponding to the registered attribute. Note that all of the extracted color histories extracted so far are stored as color information corresponding to the registered colors. Note that a color area including all the conical areas set in the color space may be set as a registered color.

  Next, in step S111, an attribute corresponding to the registered color is acquired and attribute information is registered. For example, assuming that (a) the process according to the marker color / attribute correspondence table shown in FIG. 3A is executed, the purchase price is determined when the extracted color of the marker color additional recording area is determined to be orange. As the corresponding attribute of the character information (OCR analysis result) of the area where the marker is added, the attribute “purchase price” is associated with the character information and stored in the storage unit of the information processing apparatus. be registered.

  Next, in step S112, the color value history acquired this time is saved in addition to the previous color value history. This stored data is applied in the next color value analysis of the extracted color. That is, it is applied when generating an approximate curve and setting a cone.

  By such processing, when determining the color and attribute of the color extracted from a new document or a new marker area, an approximate curve based on the previous extracted color history is newly set, and a new cone is set. Then, it is determined whether or not the color value of the new extracted color is included in the cone area, and the process of determining whether or not it corresponds to the attribute corresponding color is repeated. Even if the marker color change described with reference to FIG. 3 occurs by this processing, the color region used as a criterion for determining whether or not it corresponds to the registered color in the information processing apparatus follows the marker color change. Thus, since the update is performed sequentially, correct color determination and attribute setting are possible without causing erroneous determination. In this processing example, the processing example in which the Lab space is applied has been described. However, the present invention can be executed as a processing in which a color space different from Lab, such as RGB, is applied, and has the same effect. be able to.

(2.2) Processing example 1 corresponding to replacement of marker pen (exchange to same color)
Next, a processing example corresponding to the replacement of the marker pen will be described with reference to FIG. If one marker pen is continuously used, the ink is naturally consumed, and the color gradually becomes lighter. Specifically, as shown in FIG. 6A, it is assumed that the marker pen used corresponding to a certain attribute 1 is orange. In this case, it is assumed that additional writing is repeatedly executed using one orange marker pen.

  As shown in FIG. 6B, for the first document, the color corresponding to the registered color information: Lab = (80, 20, 80) is recorded in the document. Therefore, the color value read from the marker color additional recording area 301 substantially matches the registered color. However, when repeated marker recording is performed, the ink is consumed and the color gradually fades. For example, in the 30th or 30th additional recording, the color value read from the marker color additional recording area 302 is the registered color. Furthermore, if the same marker pen is used continuously, the color becomes lighter, and the color value read from the marker color additional recording area 303 in the nth or nth additional recording is clearly a registered color. It becomes a different value.

  Such a color change can be dealt with by the processing example corresponding to the color change of (2.1) marker pen described above. That is, by changing the marker color as necessary by executing the setting of the approximate curve and the setting of the conical region as described with reference to FIG. 4 and determining whether or not the color corresponds to the registered color, the marker color changes. It is possible to perform color determination and attribute determination following the above. However, in this example process, the operator may stop using the lighter marker pen and start using a new marker pen.

  Such replacement of the pen makes it impossible to cope with processing based on the history up to the previous time. That is, if the pen is replaced when the n-th additional recording is completed, the n-th extracted color is clearly different from the extracted color from the n + 1-th additional recording area where the additional writing is performed with a new pen. The color is not included in the conical region set based on the approximate curve based on the extracted color history. Even if the color is the same, for example [Orange], the color differs depending on the pen manufacturer. If the registered color is fixed, the replacement pen color is determined to be different from the registered color. There is a fear that.

  This processing example is a processing example that enables attribute setting based on correct color determination even when such pen replacement occurs. This processing example will be described with reference to FIG. FIG. 7A shows a distribution of Lab values corresponding to read information of a marker color corresponding to one attribute extracted from a document to which a marker has been added, for example, orange. Even if the marker color added by the operator is the same color as described with reference to FIG. 6, the color gradually becomes light, and the color may suddenly change greatly due to the change of the pen.

  As described above, in the comparison process between the marker color and the registered color value, a process for setting a slight error as an allowable error is performed. However, if a change in the marker color as described above with reference to FIG. 3 occurs, the difference from the registered color value (Lab) becomes large and may be outside the allowable error range. Cannot be set. The gentle color change based on the number of times the marker color is used can be dealt with by the processing example corresponding to the (2.1) marker pen color change described above. I can not cope.

  Therefore, in this processing example, even if the pen is changed, it is possible to determine that the color corresponds to the registered color. Therefore, as shown in FIG. 7B, the color is set based on the extracted color history. A cylindrical region 322 having a radius r centered on the approximate curve 321 is set, and when the color value of the extracted color is included in the cylindrical region 322, processing for determining that the color corresponds to the registered color is executed. .

  The approximate curve 321 is the approximate curve described in the processing example corresponding to the color change of the marker pen described above (2.1), and is an approximate curve set based on the color value (Lab) of the past extracted color. . In this processing example, a cylindrical region 322 having a radius r is set as an extended registration color region with the approximate curve 321 as the center. If the color value of the extracted color is included in this cylindrical region 322, it is determined that the color corresponds to the registered color.

  For example, the color value 331 shown in FIG. 7B is the color value of the extracted color of the marker color extracted in the first document reading, and the color value 332 is the nth time that is additionally written with the same marker pen. This is a color value of an extracted color of a marker color read and extracted from a document to which additional writing has been made. For example, the color value 331 corresponds to the color value acquired from the marker color additional recording area 301 in FIG. 6, and the color value 332 corresponds to the color value acquired from the marker color additional recording area 303 in FIG. 6.

  It is assumed that after completing the n-th additional writing, the operator replaces the marker pen. However, this pen is a pen made by a different manufacturer from the pen used so far, and the color values of the same color, for example [orange], do not match. In FIG. 7B, this corresponds to the color value 333. However, the color value 333 is included in the extended registration color region, which is a cylindrical region 322 having a radius r set with the approximate curve 321 as the center, as understood from the figure. Based on this, it is determined that the color corresponds to the registered color, and correct attribute setting is performed. Note that the value of the radius r is set in advance based on the color difference of the type of pen used. The setting information is recorded in the information processing apparatus.

  The information processing apparatus sets the approximate curve described in the processing example corresponding to the color change of the marker pen described above (2.1), and based on the value of the radius r, the cylindrical region having the approximate curve as the central axis That is, the cylindrical region 322 shown in the figure is set as an extended registered color region, and settings for setting these color regions as registered colors are executed, and the extracted color and the registered color are compared. That is, when the extracted color is included in the cylindrical region 322, it is determined that it corresponds to the registered color, and the attribute setting is executed.

  With reference to the flowchart shown in FIG. 8, the sequence of this processing example executed in the information processing apparatus will be described. First, the information processing apparatus inputs a scan image in step S201. This scan image is a scan image of a marker-added document in which the marker color is additionally recorded by the operator selecting the marker color according to the marker color / attribute correspondence table 71 shown in FIG. In step S202, a character analysis (OCR) process is executed. In this character analysis, character analysis of the entire document may be performed, or character analysis may be performed by selecting only the marker color setting region.

  In step S203, color extraction processing is executed. A color different from the recorded color of the original background of the document and the original characters is extracted. The color extracted individually may include not only the marker color registered in the table but also a color different from the marker color not registered in the table. This occurs due to, for example, color thinning due to continuous use of markers, pen replacement, and the like as described above with reference to FIGS.

  In step S204, it is determined whether each color extracted in step S203 is a marker color (registered color) registered in the table or an unregistered color (non-registered color).

  In step S205, an approximate curve based on the history of extracted colors and the extracted colors up to the previous time is calculated. This is the process described with reference to FIG. 4 in the process example corresponding to the previous (2.1) color change of the marker pen. The approximate curve is a curve set based on a plurality of measurement color values (Lab values) up to the previous time, and approximate curves based on various processes such as linear approximation, polynomial approximation, and moving average can be used.

  Next, in step S206, a cylindrical color region having a radius r with the approximate curve as the central axis is set. This corresponds to the cylindrical region 322 described with reference to FIG. Next, in step S207, analysis processing is performed to determine whether or not the color value of the current extracted color exists within the set cylindrical region. If it is determined in step S208 that the color value of the current extracted color exists in the set cylindrical area, the process proceeds to step S209, and if the color value of the current extracted color does not exist in the set cylindrical area in step S208. If it is determined, it is determined that the extracted color is not a registered color, and the process ends (if there is a next document, the process proceeds to the next document).

  If it is determined in step S208 that the color value of the current extracted color exists within the set cylindrical area, it is determined that the extracted color is a registered color, and in step S209, the color value information of the registered color corresponding to the attribute. Update. That is, the color information update is performed for the color value acquired this time, assuming that it is the color value corresponding to the registered attribute. Note that all of the extracted color histories extracted so far are stored as color information corresponding to the registered colors. Note that a color area including all the cylindrical areas set in the color space may be set as a registered color.

  Next, in step S210, an attribute corresponding to the registered color is acquired and attribute information is registered. For example, assuming that the processing according to the marker color / attribute correspondence table 71 shown in FIG. 2 is being executed, if it is determined that the extracted color of the marker color additional recording area is orange, the attribute is a purchase price. The attribute “purchase price” is stored in the storage unit of the information processing apparatus and registered in association with the character information as the corresponding attribute of the character information (OCR analysis result) of the area where the marker is additionally recorded.

  Next, in step S211, the color value history acquired this time is saved in addition to the previous color value history. This stored data is applied in the next color value analysis of the extracted color. That is, it is applied when generating an approximate curve and setting a cylindrical region.

  By such processing, an approximate curve based on the previous extracted color history is newly set and a new cylindrical area is set for color determination and attribute determination of the extracted color from a new document or a new marker area sequentially. Then, it is determined whether or not the color value of the new extracted color is included in the cylindrical region, and the process of determining whether or not it corresponds to the attribute corresponding color is repeated. Even if the marker color change and the color difference due to the replacement of the marker pen described with reference to FIGS. 6 and 7 occur as a result of this processing, a criterion for determining whether or not to correspond to the registered color in the information processing apparatus Since the color area with the predetermined radius r centering on the approximate curve is sequentially updated and the wider area is determined as the color corresponding to the registered color. Therefore, correct color determination and attribute setting can be performed without making any determination. In this processing example, the processing example in which Lab space is applied as the color space has been described. However, this processing example can also be executed as processing in which a color space different from Lab, such as RGB, is applied. Can play.

(2.3) Processing example 2 corresponding to replacement of marker pen (exchange to a different color)
Next, processing example 2 corresponding to the replacement of the marker pen will be described with reference to FIG. In the processing example 1 (exchange to the same color) corresponding to the replacement of the marker pen described in (2.2) above, for example, when the marker used is [orange], the pen is replaced with a new pen of the same [orange] It was an example of correspondence. However, the same color pens are not always available, and there are cases where a pen of a color that has not been used is used. For example, when the processing according to the marker color / attribute correspondence table 71 shown in FIG. 2 is executed, the operator performs marker addition using [orange] as the marker color corresponding to the attribute [purchase price]. If ink is consumed by adding many markers and you try to replace the pen, but there is no orange marker pen of the same color, a new color that is not registered as an attribute-corresponding color, such as [Purple], [Orange] In some cases, it is used as a marker color corresponding to the attribute [purchase price] instead of.

  In such a case, the marker color and attribute correspondence table registered in the information processing apparatus that performs color analysis can be handled by updating the registration information by the operator when changing the marker color. It is a troublesome process for the operator to perform, and the processing efficiency decreases. Therefore, in this processing example, when the marker pen is changed to a completely different color as described above, it is automatically determined which registered color the pen corresponding to the new color is replaced with. The marker color / attribute correspondence table is automatically updated. This processing example will be described with reference to FIG.

FIG. 9 is a diagram for explaining an example of update processing of the marker color / attribute correspondence table associated with pen replacement. For the first to nth documents, the operator performs marker addition based on the settings shown in the additional document 410 in which the marker colors in the figure are added, that is, information registered in the marker color / attribute correspondence table 415. It was. In particular,
Marker color = orange: attribute = purchase price
Marker color = green: attribute = purchased item,
Marker color = blue: attribute = requester,
Marker color = red: attribute = respondent,
Based on the correspondence information between the marker color and the attribute, the operator has added the marker.

  While the marker addition is being executed based on this setting information, since the ink of the [orange] marker pen has been consumed, the operator stops using the [orange] marker pen and registers it in the marker color / attribute correspondence table 415. [Purple] is selected as a new color that has not been added, and marker addition is continued in place of the [orange] marker pen.

As a result, as shown in the postscript document 420 in which the marker color shown in the figure is added,
Marker color = purple: attribute = purchase price,
Marker color = green: attribute = purchased item,
Marker color = blue: attribute = requester,
Marker color = red: attribute = respondent,
The correspondence between these marker colors and attributes is newly set, and the operator adds markers.

The marker color additional recording area 411 of the purchase price of the additional recording document 410 in which the 1st to nth marker colors are added as shown in the figure is the [orange] marker color additional recording, but the additional recording in which the (n + 1) th marker color is added. The marker color additional recording area 421 of the purchase price of the document 420 is changed to [purple] marker color additional recording. In this processing example, when such additional writing with a marker pen of a new color is detected, the registration information is automatically updated. That is,
[Marker color = orange: attribute = purchase price]
A marker color / attribute correspondence table 415 in which the correspondence information is registered,
[Marker color = purple: attribute = purchase price]
A process of changing to the information and updating the marker color / attribute correspondence table 425 is executed.

  A specific processing example of this processing example will be described with reference to FIG. In this processing example, the number of processed documents is compared with the number of marker color additional recording areas detected corresponding to each marker color, and the presence / absence of a change in marker color and the determination of the changed marker color are executed.

A color space 450 shown in FIG. 10 is a Lab color space, and the information processing apparatus arranges the determination colors of the color area extracted from the marker additional document in the color space 450 and counts the number of each extracted color. . In this processing example, the number of processed documents (originals) = 7,
Marker color = orange: attribute = purchase price
Marker color = green: attribute = purchased item,
Marker color = blue: attribute = requester,
Marker color = red: attribute = respondent,
It is assumed that the processing based on the marker color / attribute correspondence table 415 having the correspondence information is executed. Each document is assumed to include one color (attribute).

The information processing apparatus counts the number of each extracted color corresponding to the color registered in the marker color / attribute correspondence table 415. In the example shown in the figure,
Orange area 451: Count number = 6,
Green region 452: Count number = 7,
Blue region 453: Count number = 7,
Red region 454: Count number = 7,
The number of marker color additional recording areas corresponding to each of these color areas is counted.
Further, an unregistered color corresponding color value 471 indicating [marker color = purple] that is not registered in the marker color / attribute correspondence table 415 is detected.

  The information processing apparatus that performs color analysis, attribute determination, and registration processing compares the extracted count number of each attribute-corresponding registered color with the number of documents. In the processing example shown in FIG. 10, the orange count number = 6 has a smaller count number than the document number = 7. Furthermore, one new extracted color [purple] is detected. The purple count is [1].

The information processing apparatus verifies that the added number (6 + 1 = 7) of the number of counts of the extracted color [orange] and the new color [purple] whose count is less than the planned number is equal to the number of documents = 7, and based on this verification Thus, it is determined that this article has been executed from the marker color [orange] to the marker color [purple]. Based on this determination, the information processing device
[Marker color = orange: attribute = purchase price]
A marker color / attribute correspondence table 415 in which the correspondence information is registered,
[Marker color = purple: attribute = purchase price]
A process of changing to the information and updating the marker color / attribute correspondence table 425 is executed.

By this process, the marker color / attribute correspondence table is automatically updated, so that the operator does not need to execute the table update process, and an efficient process is realized. The above processing example has been described as a setting example in which one attribute-corresponding color setting area is set for one document. However, if one document has one same marker color setting area, that area It is set to execute counting according to the number. For example, when there are two orange setting areas in one document, in the example of FIG. 10, it is predicted that the orange color extraction is 7 × 2 = 14 and the count number = 14 with respect to the document number = 7. Is done. Contrary to this prediction, for example, if there are only 10 [orange] color counts and 4 [purple] counts are detected,
[Orange count = 10] + [Purple count = 4] = 14
Therefore, it corresponds to the number of orange scheduled additional use areas for the document = 14, so it is determined that the marker pen color has been changed from [orange] to [purple], and the registered color information is updated, that is, the table is updated. Execute.

  The sequence of this processing example will be described with reference to the flowchart shown in FIG. First, the information processing apparatus inputs a scan image in step S301. This scan image is a scan image of a marker-added document in which the marker color is additionally recorded by the operator selecting the marker color according to the marker color / attribute correspondence table 71 shown in FIG. In step S302, character analysis (OCR) processing is executed. In this character analysis, character analysis of the entire document may be performed, or character analysis may be performed by selecting only the marker color setting region.

  In step S303, color extraction processing is executed. A color different from the recorded color of the original background of the document and the original characters is extracted. The color extracted individually may include not only the marker color registered in the table but also a color different from the marker color not registered in the table. This occurs, for example, due to the replacement of the marker pen as described above with reference to FIGS.

  In step S304, it is determined whether each color extracted in step S303 is a marker color (registered color) registered in the table or an unregistered color (unregistered color).

  Next, in step S305, the number of extracted marker colors (registered colors) registered in the table is counted and compared with the planned number. In the processing example described with reference to FIG. 10, the planned number of each extracted color is [7]. In step S306, it is determined whether all the extracted color counts match the planned number. If they match, it is determined that the color change of the marker pen has not been executed, and the process advances to step S308 to acquire an attribute corresponding to the registered color and register attribute information. For example, assuming that the processing according to the marker color / attribute correspondence table 71 shown in FIG. 2 is being executed, if it is determined that the extracted color of the marker color additional recording area is orange, the attribute is a purchase price. The attribute “purchase price” is stored in the storage unit of the information processing apparatus and registered in association with the character information as the corresponding attribute of the character information (OCR analysis result) of the area where the marker is additionally recorded.

If it is detected in step S306 that the extracted color count does not match the planned number, the process proceeds to step S307. In step S307, a registered color update process for changing the registered color corresponding to the attribute having a count number smaller than the planned number to the newly extracted color is executed. This process is the process described above with reference to FIG.
[Marker color = orange: attribute = purchase price]
A marker color / attribute correspondence table 415 in which the correspondence information is registered,
[Marker color = purple: attribute = purchase price]
This corresponds to the process of changing to the above information and updating the marker color / attribute correspondence table 425. After the registration information update process, the process advances to step S308 to execute a registration process for attributes corresponding to registered colors.

  In this processing example, even when the marker pen is changed to a color that is completely different from the color that has been used by the above-described processing, the color change of the marker pen is performed on the information processing apparatus side, and The registration information, that is, the correspondence table of marker colors and attributes, is updated by accurately determining which attribute corresponding to the color change has been executed, so that the operator does not need to update the table and efficient processing is performed. Realized. In this processing example, the processing example in which the Lab space is applied has been described. However, the processing can be executed as a processing in which a color space different from Lab, such as RGB, is applied, and similar effects can be achieved. .

[3. Configuration of information processing apparatus]
Next, the configuration of the information processing apparatus of the present invention that executes the above-described processing will be described with reference to the block diagram shown in FIG. Various processes described in the above-described embodiments, that is, processes according to the flowcharts of FIGS. 5, 8, and 11 are performed by the CPU as a data processing unit according to a program executed in an information processing apparatus such as a PC. Controlled. FIG. 12 is a block diagram showing the data processing in order to explain the series of data processing. That is, the data processing execution function of the information processing apparatus of the present invention is shown as a block. Hereinafter, processing executed by the information processing apparatus of the present invention will be described with reference to this block diagram.

  As shown in FIG. 12, the information processing apparatus according to the present invention inputs an image input unit 481 for inputting a scan image of an additional record document added by markers of various colors, and characters on the additional record document input to the image input unit 481. A character recognition processing unit 482 that performs recognition (OCR), a color region extraction unit 483 that extracts a color region on an additional writing document, and a table in which the color extracted by the color region extraction unit 483 is held by the information processing apparatus; That is, it has a registered color determination unit 484 that determines whether the color is a registered color or a non-registered color registered in the marker color / attribute correspondence table.

  Further, setting of the approximate curve and the conical area described in the processing example corresponding to the above-described (2.1) marker pen discoloration, or (2.2) processing example 1 corresponding to the replacement of the marker pen (same color) Whether the extracted color determined to be a non-registered color by the extended registered color region setting unit 485 and the registered color determining unit 484 for executing the setting of the approximate curve and the cylindrical region described in (Replacement) to be included in the extended registered color region Extraction color determination unit 486 that determines whether or not, (2.3) Extraction color count unit 487 that executes the extraction color counting process described in the processing example 2 (exchange to a different color) corresponding to the replacement of the marker pen, It has a count number verification unit 488 that executes a comparison between the count number and the planned number.

further,
(2.1) Processing example corresponding to marker pen discoloration (2.2) Processing example 1 corresponding to marker pen replacement (exchange to same color)
(2.3) Processing example 2 corresponding to replacement of marker pen (exchange to a different color)
Registration update processing unit 489 for executing update of registration information based on information analyzed by any of these processes, update information recording unit 490 for executing storage processing for the storage unit of registration information, marker color based on registration information An attribute determination unit 491 that acquires an attribute corresponding to the attribute and determines the attribute; and a data registration unit 492 that sets the attribute determined by the attribute determination unit 491 as an attribute of the analysis character information of the character recognition processing unit 482 and registers the attribute in the database Have

  For example, in the configuration in which the processing example corresponding to (2.1) marker pen discoloration described above is executed, the extended registered color region setting unit 485 uses a plurality of color values in the color space of the marker color of the analyzed document. An approximate curve is generated based on the history points, and a projection point based on the color value data of the previous extracted color is set on the generated approximate curve, and a conical region having the projection point as a vertex corresponds to a registered color. The extracted color determination unit 486 determines whether or not the extracted color determined as the non-registered color by the registered color determination unit 484 is included in the cone region. Further, when the attribute determination unit 491 determines that the extracted color is included in the cone area, the attribute set corresponding to the registered color is changed to the attribute corresponding to the data included in the marker color additional recording area of the extracted color. The process determined as follows is executed. The registered color update processing unit 489 executes registered color update processing for additionally setting a color value included in the color region (cone) set by the extended registered color region setting unit 485 as a new registered color.

  In the configuration in which the processing example 1 (exchange to the same color) corresponding to the exchange of the marker pen described above (2.2) is executed, the extended registered color area setting unit 485 performs marker color analysis for the analyzed document. An approximate curve is generated based on a plurality of history points of color values in the color space, a cylindrical area having the generated approximate curve as a central axis is set, and the cylindrical area is set as an extended registered color area corresponding to the registered color Execute the setting process. Further, the extracted color determination unit 486 executes processing for determining whether or not the extracted color determined as the non-registered color by the registered color determination unit 484 is included in the cylindrical region. Further, when the attribute determining unit 491 determines that the extracted color is included in the cylindrical region, the attribute set corresponding to the registered color is changed to the attribute corresponding to the data included in the marker color additional recording region of the extracted color. The process determined as follows is executed. The registered color update processing unit 489 executes registered color update processing for additionally setting a color value included in the color region (cylinder) set by the extended registered color region setting unit 485 as a new registered color.

  Furthermore, in the processing example in which (2.3) processing example 2 (exchange to a different color) corresponding to the replacement of the marker pen is executed, each of the marker colors determined as the corresponding color of the same attribute in the extracted color counting unit 487 The number of extractions is counted, and the count number verification unit 488 compares the number of extractions of each marker color with the planned number of extractions corresponding to each marker color in advance. Further, in the registered color update processing unit 489, the result of adding the marker color less than the planned extraction number in the count number verification step and the extraction count of the non-registered color detected by the registered color determination unit 484 is less than the planned extraction number. On the condition that the number of marker colors is to be extracted, it is determined that the non-registered color is a marker color after changing a marker color that is less than the planned number of extractions, the registered color is updated, and the attribute determination unit 491 , A process of determining a color area newly determined as a registered color by the registered color update processing unit 489 as an attribute set corresponding to the old registered color as an attribute corresponding to data included in the color area is executed. To do.

In addition, the structure shown in FIG. 12 is each processing example mentioned above, ie,
(2.1) Processing example corresponding to marker pen discoloration (2.2) Processing example 1 corresponding to marker pen replacement (exchange to same color)
(2.3) Processing example 2 corresponding to replacement of marker pen (exchange to a different color)
Although all of these have been shown as configuration examples that can be executed, only one of the above three types of processing may be executed.

  Finally, with reference to FIG. 13, a hardware configuration example of the information processing apparatus of the present invention will be described. The configuration illustrated in FIG. 13 is an information processing apparatus configured by, for example, a PC, and illustrates a hardware configuration example including a data reading unit 531 such as a scanner and a data output unit 532 such as a printer.

  A CPU (Central Processing Unit) 501 performs various types of data processing according to the flowcharts of FIGS. 5, 8, and 11 described in the above-described embodiment, that is, for example, OCR processing, color area extraction processing, extended registered color area A data processing unit that executes processing in accordance with a computer program describing an execution sequence of each processing such as setting processing, extraction color determination processing, extraction color count and count number verification processing, registered color update processing, and attribute registration processing .

  A ROM (Read Only Memory) 502 stores programs used by the CPU 501, calculation parameters, and the like. A RAM (Random Access Memory) 503 stores programs used in the execution of the CPU 501, parameters that change as appropriate during the execution, and the like. These are connected to each other by a host bus 504 including a CPU bus.

  The host bus 504 is connected to an external bus 506 such as a PCI (Peripheral Component Interconnect / Interface) bus via a bridge 505.

  A keyboard 508 and a pointing device 509 are input devices operated by the user. The display 510 includes a liquid crystal display device, a CRT (Cathode Ray Tube), or the like, and displays various information as text or image information.

  An HDD (Hard Disk Drive) 511 includes a hard disk, drives the hard disk, and records or reproduces a program executed by the CPU 501 and information. The hard disk stores an original document as a document, an additional document added with marker colors, a correspondence table between marker colors and attributes, an attribute dictionary, and the like. Further, various computer programs such as various data processing programs are stored.

  The drive 512 reads data or a program recorded on a removable recording medium 521 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, and the data or program is read out from the interface 507 and the external bus 506. , And supplied to the RAM 503 connected via the bridge 505 and the host bus 504. The removable recording medium 521 can also be used as a data recording area similar to a hard disk.

  The connection port 514 is a port for connecting the external connection device 522 and has a connection unit such as USB or IEEE1394. The connection port 514 is connected to the CPU 501 and the like via the interface 507, the external bus 506, the bridge 505, the host bus 504, and the like. The communication unit 515 is connected to a network and executes data communication processing with the outside. The data reading unit 531 executes document reading processing, and the data output unit 532 executes document data output processing.

  Note that the hardware configuration example of the information processing apparatus shown in FIG. 13 shows one example of the apparatus, and the information processing apparatus of the present invention is not limited to the configuration shown in FIG. Any configuration capable of executing the process may be used.

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present invention. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

  The series of processes described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run.

  For example, the program can be recorded in advance on a hard disk or ROM (Read Only Memory) as a recording medium. Alternatively, the program is temporarily or permanently stored on a removable recording medium such as a flexible disk, a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto optical) disk, a DVD (Digital Versatile Disc), a magnetic disk, or a semiconductor memory. It can be stored (recorded). Such a removable recording medium can be provided as so-called package software.

  The program is installed on the computer from the removable recording medium as described above, or is wirelessly transferred from the download site to the computer, or is wired to the computer via a network such as a LAN (Local Area Network) or the Internet. The computer can receive the program transferred in this manner and install it on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

  As described above, according to the configuration of one embodiment of the present invention, for example, a character string is extracted / attributed by a marker pen on a document document, that is, a marker color is analyzed from an additional recording document that has been additionally written with a color marker. Then, in the configuration in which the attribute determination process of document information based on the marker color is executed, an extended registered color area corresponding to the registered color is set based on the history of the analyzed color information in the marker color analyzed document, and the non-registered color When the extracted color determined to be included in the extended registered color area, the attribute set corresponding to the registered color is set as the attribute corresponding to the data included in the marker color additional recording area of the extracted color Therefore, for example, even when a color change of a marker pen with time or replacement of a pen is executed, it is based on accurate color determination. Gender grant is made possible.

  Further, according to the configuration of one embodiment of the present invention, the number of extractions of each marker color determined as the corresponding color of the same attribute is counted, and the comparison with the planned number of extractions corresponding to each marker color is performed in advance. Since the marker color after changing the number of marker colors that are less than the planned number of extractions is determined and the registered color is updated based on this determination information, the update is performed automatically without performing the registered color update process by the operator. Thus, efficient processing is realized.

It is a figure explaining the general processing example of the character string extraction / attribute provision process by a marker pen. It is a figure explaining the specific process example of the character string extraction / attribute provision process by a marker pen. It is a figure explaining the specific example in which the change of the color of the marker pen which an operator utilizes occurs. It is a figure explaining one Example of the color analysis process example which the information processing apparatus of this invention performs. It is a figure which shows the flowchart explaining the process example in the information processing apparatus of this invention. It is a figure explaining the process example corresponding to replacement | exchange of the marker pen in the information processing apparatus of this invention. It is a figure explaining the process example which enabled the attribute setting based on the correct color determination even when the pen replacement performed in the information processing apparatus of this invention occurred. It is a figure which shows the flowchart explaining the process example in the information processing apparatus of this invention. It is a figure explaining the process example 2 corresponding to replacement | exchange of the marker pen in the information processing apparatus of this invention. It is a figure explaining the specific example of the process example 2 corresponding to replacement | exchange of the marker pen performed in the information processing apparatus of this invention. It is a figure which shows the flowchart explaining the process example in the information processing apparatus of this invention. It is a block diagram explaining the functional structural example of the information processing apparatus of this invention. It is a figure explaining the hardware structural example of the information processing apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Original document 21 Additional record document 51 Information processing apparatus 52 Printer 53 Scanner 54 Database 71 Marker color attribute correspondence table 72 Analysis data 100 Additional record document 101-104 Marker color additional recording area 201-203 Marker color additional recording area 221-223 Marker color additional recording area 271 ˜275 Color value 281 to 283 Conical region 291 to 293 Approximate curve 301 to 303 Marker color additional recording region 321 Approximate curve 322 Cylindrical region 331 to 333 Color value 410 and 420 Additional document 411 and 421 Marker color additional recording region 415 and 425 Marker color and Attribute correspondence table 450 Color space 451 to 454 Color region 471 Non-registered color corresponding color value 481 Image input unit 482 Character recognition processing unit 483 Color region extraction unit 484 Registered color determination 485 Extension Registration color area setting unit 486 extracts color determining unit 487 extracts color counting unit 488 counts the number of verification unit 489 registration update processing unit 490 updates the information recording unit 491 attribute determination unit 492 data registration unit 501 CPU (Central Processing Unit)
502 ROM (Read-Only-Memory)
503 RAM (Random Access Memory)
504 Host bus 505 Bridge 506 External bus 507 Interface 508 Keyboard 509 Pointing device 510 Display 511 HDD (Hard Disk Drive)
512 drive 514 connection port 515 communication unit 521 removable recording medium 522 external connection device 531 data reading unit 532 data output unit

Claims (16)

An information processing apparatus that executes an attribute determination process for document information based on a marker color added to a document,
A color area extraction unit that inputs a postscript document in which a marker color is added to the document and acquires color information of a marker color postscript area on the postscript document;
A registered color determination unit that determines whether the color included in the color region extracted by the color region extraction unit is a registered color or a non-registered color that is registered in advance as an additional recording marker color;
An extended registered color area setting unit for setting an extended registered color area corresponding to the registered color based on the history of the analysis color information in the marker color analyzed document;
An extracted color determining unit that determines whether or not an extracted color determined as a non-registered color by the registered color determining unit is included in the extended registered color region;
If the extracted color determining unit determines that the extracted color is included in the extended registered color area, the attribute set corresponding to the registered color is included in the marker color additional recording area of the extracted color. An attribute determination unit that determines the attribute corresponding to
A registered color update processing unit for additionally setting a color value included in the color region set in the extended registered color region setting unit as a new registered color;
An information processing apparatus comprising: The extended registered color area setting unit
An approximate curve is generated based on a plurality of history points of color values in the color space of the marker color of the analyzed document, a projection point based on the color value data of the previous extracted color is set on the generated approximate curve, and the It is a configuration for executing a process of setting a cone area having a projection point as a vertex as an extended registered color area corresponding to a registered color,
The extracted color determination unit
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute a process of determining whether or not an extracted color determined as a non-registered color by the registered color determination unit is included in the conical region. . The extended registered color area setting unit
A configuration that executes processing to set a conical region that has an apex at the nearest point on the approximate curve corresponding to the color value of the previous extracted color and that includes the approximate curve and has a spread in the new direction of the color value history as an extended registered color region The information processing apparatus according to claim 2, wherein the information processing apparatus is an information processing apparatus. The extended registered color area setting unit
The information processing apparatus according to claim 3, wherein the information processing apparatus is configured to execute a process of setting a cone area having a preset radius r and height l as an extended registration color area. The extended registered color area setting unit
Generates an approximate curve based on multiple history points of color values in the color space of the marker color of the analyzed document, sets a cylindrical area with the generated approximate curve as the central axis, and corresponds the cylindrical area to the registered color Is configured to execute the process of setting as an extended registered color area,
The extracted color determination unit
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute a process of determining whether or not an extracted color determined as a non-registered color by the registered color determination unit is included in the cylindrical region. . The extended registered color area setting unit
The information processing apparatus according to claim 5, wherein the information processing apparatus is configured to execute a process of setting a cylindrical area having a radius r set in advance as an extended registration color area. An information processing apparatus that executes an attribute determination process for document information based on a marker color added to a document,
A color area extraction unit that inputs a postscript document in which a marker color is added to the document and acquires color information of a marker color postscript area on the postscript document;
A registered color determination unit that determines whether the color included in the color region extracted by the color region extraction unit is a registered color or a non-registered color that is registered in advance as an additional recording marker color;
An extraction color counting unit that counts the number of extractions of each marker color determined to be a corresponding color of the same attribute;
A count number verification unit that performs comparison between the number of extractions of each of the marker colors and the number of extractions corresponding to each marker color in advance;
In the count number verification unit, the addition result of the marker color less than the planned extraction number and the non-registered color extraction count detected by the registered color determination unit is the planned extraction number of marker colors less than the planned extraction number. On the condition, the non-registered color is determined to be the marker color after the change of the marker color less than the number of extraction, and a registered color update processing unit for executing the update of the registered color,
An attribute determination unit for determining a color area newly determined as a registered color in the registered color update processing unit as an attribute set corresponding to the old registered color as an attribute corresponding to data included in the color area;
An information processing apparatus comprising: In the information processing apparatus, an information processing method for executing attribute determination processing of document information based on a marker color added to a document,
In the color region extraction unit, a color region extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional region on the postscript document;
A registration color determination step for determining whether the color included in the color region extracted in the color region extraction step is a registered color or a non-registered color registered in advance as a postscript marker color in the registered color determination unit; ,
In the extended registration color area setting unit, an extended registration color area setting step for setting an extended registration color area corresponding to the registered color based on the history of analysis color information in the marker color analyzed document;
In the extraction color determination unit, an extraction color determination step for determining whether or not the extraction color determined as a non-registered color in the registration color determination step is included in the extended registration color region;
In the attribute determination unit, if it is determined in the extracted color determination step that the extracted color is included in the extended registered color area, the attribute set corresponding to the registered color is added to the marker color additional recording area of the extracted color. An attribute determination step for determining the attribute corresponding to the data included in the
In a registered color update processing unit, a registered color update processing step of additionally setting a color value included in the color area set in the extended registered color area setting step as a new registered color;
An information processing method characterized by comprising: The extended registered color area setting step includes:
An approximate curve is generated based on a plurality of history points of color values in the color space of the marker color of the analyzed document, a projection point based on the color value data of the previous extracted color is set on the generated approximate curve, and the A step of executing a process of setting a cone area having a projection point as a vertex as an extended registered color area corresponding to a registered color;
The extraction color judgment step
9. The information processing method according to claim 8, wherein the extracted color determined to be a non-registered color in the registered color determining step is a step of determining whether or not the extracted color is included in the conical region. . The extended registered color area setting step includes:
A step of executing a process of setting, as an extended registered color area, a conical area having an apex at the neighboring point on the approximate curve corresponding to the color value of the previous extracted color and including the approximate curve and having spread in the new direction of the color value history The information processing method according to claim 9, wherein: The extended registered color area setting step includes:
11. The information processing method according to claim 10, wherein the information processing method is a step of executing a process of setting a cone area having a preset radius r and height l as an extended registration color area. The extended registered color area setting step includes:
Generates an approximate curve based on multiple history points of color values in the color space of the marker color of the analyzed document, sets a cylindrical area with the generated approximate curve as the central axis, and corresponds the cylindrical area to the registered color The step of executing the process of setting as an extended registered color area to be performed,
The extraction color judgment step
9. The information processing method according to claim 8, wherein the extracted color determined to be a non-registered color in the registered color determination step is a step of determining whether or not the extracted color is included in the cylindrical region. . The extended registered color area setting step includes:
13. The information processing method according to claim 12, wherein the information processing method is a step of executing processing for setting a cylindrical region having a radius r set in advance as an extended registration color region. In the information processing apparatus, an information processing method for executing attribute determination processing of document information based on a marker color added to a document,
In the color region extraction unit, a color region extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional region on the postscript document;
A registration color determination step for determining whether the color included in the color region extracted in the color region extraction step is a registered color or a non-registered color registered in advance as a postscript marker color in the registered color determination unit; ,
In an extraction color counting unit, an extraction color counting step for counting the number of extractions of each marker color determined to be a corresponding color of the same attribute;
In the count number verification unit, a count number verification step of executing a comparison between the number of extractions of each of the marker colors and the number of extractions corresponding to each marker color in advance,
In the registered color update processing unit, a marker color that is less than the planned number of extractions is obtained by adding the marker color that is less than the planned number of extractions in the count number verification step and the extraction count of the non-registered colors that is detected in the registered color determination step. A registration color update processing step for determining that the non-registered color is a marker color after changing the marker color less than the planned extraction number, and executing the update of the registered color, on the condition that the number of extraction is
In the attribute determination unit, the color area newly determined as the registered color in the registered color update processing step is determined as the attribute corresponding to the data included in the color area as the attribute set corresponding to the old registered color. An attribute determination step;
An information processing method characterized by comprising: In the information processing apparatus, a computer program for executing an attribute determination process of document information based on a marker color added to a document,
In the color area extraction unit, a color area extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional area on the postscript document;
A registered color determining step for determining whether the color included in the color region extracted in the color region extracting step is a registered color or a non-registered color registered in advance as an additional marker color; ,
In the extended registration color area setting unit, an extended registration color area setting step for setting an extended registration color area corresponding to the registered color based on the history of analysis color information in the marker color analyzed document;
In the extraction color determination unit, an extraction color determination step for determining whether or not the extracted color determined as a non-registered color in the registered color determination step is included in the extended registered color region;
In the attribute determination unit, if it is determined in the extracted color determination step that the extracted color is included in the extended registered color area, the attribute set corresponding to the registered color is added to the marker color additional recording area of the extracted color. An attribute determination step for determining the attribute corresponding to the data included in
In a registered color update processing unit, a registered color update processing step for additionally setting a color value included in the color area set in the extended registered color area setting step as a new registered color;
A computer program for executing In the information processing apparatus, a computer program for executing an attribute determination process of document information based on a marker color added to a document,
In the color area extraction unit, a color area extraction step of inputting a postscript document in which a marker color is added to the document and obtaining color information of the marker color additional area on the postscript document;
A registered color determining step for determining whether the color included in the color region extracted in the color region extracting step is a registered color or a non-registered color registered in advance as an additional marker color; ,
In the extraction color counting unit, an extraction color counting step for counting the number of extractions of each marker color determined to be a corresponding color of the same attribute;
In the count number verification unit, a count number verification step for executing a comparison between the number of extraction of each of the marker colors and the number of extractions corresponding to each marker color in advance,
In the registered color update processing unit, a marker color that is less than the planned number of extractions is obtained by adding the marker color that is less than the planned number of extractions in the count number verification step and the extraction count of the non-registered colors that is detected in the registered color determination step. A registration color update processing step for determining that the non-registered color is a marker color after changing the marker color less than the planned extraction number, and executing the update of the registered color, on the condition that the number of extraction is
In the attribute determination unit, the color area newly determined as the registered color in the registered color update processing step is determined as an attribute corresponding to the data included in the color area as an attribute set corresponding to the old registered color. An attribute determination step;
A computer program for executing