JPH1091768A - Electronic filing device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily set the proper thickness of a marker by producing the marker information after deciding the marker thickness based on a range that is designated by a marker setting means and the character area information that is read by a document data reading means. SOLUTION: A marker including its position, thickness and color information is displayed on the image data on a document. A marker setting part 17 supplies the position information on the marker that is designated by an operator on the display screen of a document display part 16 to a marker information production part 18. The part 18 receives the character area information from a document data reading part 14 and also receives the marker position information from the part 17, decides the marker thickness information based on the character area information and the marker position information, and produces the marker information including the marker position and thickness information and the marker color information that is previously set to supply this marker information to a document data management part 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic filing method and an electronic filing apparatus for storing image data of a document in association with document search information and performing search, display, printing, and the like on the information. The present invention relates to an electronic filing method and an electronic filing apparatus that can set a marker on image data of a document.

[0002]

2. Description of the Related Art Conventionally, document search information such as a keyword is stored in association with image data of a document created by reading a document with a scanner or the like, and search, display, printing, and the like are performed on the information. Performing electronic filing devices are already known.

[0003] These keywords must be manually input by the user at the time of document registration or the like. Recently, however, character recognition has been performed on image data of a document, and document search information has been obtained from a character string of the recognition result. Has been proposed that does not require any special registration of keywords by automatically creating a keyword.

In a paper document, a line or a curve called a marker is drawn on image data of a document so that an important word or a sentence in the document is drawn with a highlighter or the like. Some have also been proposed that can be stored.

[0005] Such an electronic filing apparatus includes, for example, a document reading unit 130, a character recognizing unit 131, a document storage unit 132, a document data reading unit 133, a document display unit 134, and a marker as shown in FIG. Setting unit 13
5, a marker information creating unit 136, and a marker information writing unit 137.

A document reading unit 130 reads image data of a document read from a scanner device or the like,
The image data is stored in the character recognition unit 131 and the document storage unit 1.
32. The character recognition unit 131 receives the image data of the document from the document reading unit 130, performs character recognition on the image data, extracts a character string described in the document, and stores the extracted character string in the document. To the unit 132. The document storage unit 132 receives the image data of the document from the document reading unit 130,
A keyword for receiving a character string of a document from the character recognition unit 131 and searching for a document later from the character string of the document;
Alternatively, document search information such as an index for full-text search is created, and image data of the document is stored in association with the document search information. Further, when the marker information is received from the marker information writing unit 137, the marker information is stored in association with the image data of the document.

The document data reading unit 133 reads the image data and the marker information of the document from the document storage unit 132, receives the marker information from the marker information creating unit 136, and sends the image data and the marker information of the document to the document display unit 134. The marker information is supplied to the marker information writing unit 137. Document display unit 134
Receives the image data and the marker information of the document from the document data reading unit 133, displays the image data of the document, and displays the marker including the position information, the thickness information, and the color information of the marker information on the image data of the document. indicate.

[0008] The marker setting section 135 is provided in the document display section 13.
The position information in the range specified by the operator on the display screen of No. 4 is supplied to the marker information creating unit 136. The marker information creating unit 136 receives the position information from the marker setting unit 135, creates marker information including the position information, the preset marker thickness information and the marker color information, and stores the marker information in the document data. This is supplied to the reading unit 133. The marker information writing unit 137
Marker information is received from the document data reading unit 133, and the marker information is supplied to the document storage unit 132.

FIG. 14 shows an example of a display screen of a document in which a marker is set in such an electronic filing apparatus.

FIG. 1 shows a state in which the thickness of the marker is set to the character height of the character portion 140 on the image data of the document, and then the markers are set on the character portions 140, 141, and 142.

[0011]

However, in the above-described conventional electronic filing apparatus, in setting a marker on the image data of a document, the user needs to operate to change the thickness of the set marker. Was. For this reason, to set a marker with a thickness that matches the character height, such as when a document has characters of various sizes, the user must change the thickness of the marker for each character part where the marker is to be set. This has led to a reduction in the work efficiency of setting the marker.

In view of the above-mentioned conventional problems, the present invention provides an electronic filing method and an electronic filing apparatus which can easily set an appropriate marker thickness in setting a marker on image data of a document. It is intended to provide.

[0013]

In order to achieve the above object, in an electronic filing apparatus according to a first aspect of the present invention, there is provided a document reading means for reading image data of a document, and an image of the document read by the document reading means. Character recognition means for performing character recognition on data and extracting area information of each character written in the document; image data of the document read by the document reading means; and characters extracted by the character recognition means Document storage means for associating and storing area information of the document, document data reading means for reading image data and character area information of the document stored by the document storage means, and a document read by the document data reading means Document display means for displaying image data and marker information of the A marker setting unit for specifying a specific range for setting a marker on the image data of the displayed document; and a range specified by the marker setting unit and area information of the character read by the document data reading unit. And marker information creating means for creating the marker information by determining the thickness of the marker based on the information.

According to a second aspect of the present invention, in the electronic filing apparatus according to the first aspect, the marker information creating unit is configured to determine the marker information based on a specific range designated by the marker setting unit and a preset marker thickness. Creating the marker information by changing the thickness of the marker based on the area information of the character read by the document data reading means and optimizing the initial marker information. It is.

In the electronic filing apparatus according to a third aspect of the present invention, in the second aspect, the optimization of the initial marker information is performed based on the area information of the character read by the document data reading means. The uppermost vertical position and the lowermost vertical position are obtained, and the initial marker information is changed according to the result.

In an electronic filing apparatus according to a fourth aspect of the present invention, in the first to third aspects, the marker information comprises marker position information, thickness information, and color information.

In an electronic filing apparatus according to a fifth aspect of the present invention, a document reading unit for reading image data of a document, and character recognition is performed on the image data of the document read by the document reading unit, and the document is written on the document. Character recognition means for extracting area information of each character, and image data of a document read by the document reading means, area information of the character extracted by the character recognition means, and first marker information are stored in association with each other. Document storage means, document data reading means for reading image data, character area information, and first marker information of the document stored by the document storage means, and image data of the document read by the document data reading means. Displaying means for displaying the first marker information and the second marker information A marker setting unit for specifying a specific range for setting a marker on the image data of the document displayed by the document display unit; and a range specified by the marker setting unit and read by the document data reading unit. A marker information creating unit for creating the second marker information by determining the thickness of the marker based on the area information of the character, and the contents of the first marker information stored in the document storage unit. Marker information updating means for rewriting with the added content of the second marker information created by the marker information creating means.

According to a sixth aspect of the present invention, in the electronic filing apparatus according to the fifth aspect, the marker information creating unit is configured to determine the marker information based on a specific range designated by the marker setting unit and a preset marker thickness. After the initial marker information is created, the thickness of the marker is changed based on the area information of the character read by the document data reading means, the initial marker information is optimized, and the second marker information is obtained. It is intended to be created.

In the electronic filing apparatus according to a seventh aspect of the present invention, in the sixth aspect, the optimization of the initial marker information is performed in all character areas based on the character area information read by the document data reading means. The uppermost vertical position and the lowermost vertical position are obtained, and the initial marker information is changed according to the result.

According to an eighth aspect of the present invention, in the electronic filing apparatus according to the fifth to seventh aspects, the first and second marker information comprises marker position information, thickness information, and color information. It is.

In an electronic filing method according to a ninth aspect, a document reading step for reading image data of a document, and character recognition is performed on the image data of the document read by the document reading step, and the document is written on the document. A character recognition step of extracting area information of each character, and a document storage step of storing image data of the document read by the document reading step in association with the area information of the character extracted by the character recognition step. A document data reading step of reading image data and character area information of the document stored in the document storage step; a document display step of displaying image data and marker information of the document read in the document data reading step; In the document display step Setting a specified range for setting a marker on the image data of the displayed document, a marker setting step, and area information of the range specified by the marker setting step and the character read by the document data reading step And a marker information creation step of creating the marker information based on the determined marker thickness.

In an electronic filing method according to a tenth aspect, in the ninth aspect, the marker information creating step is performed based on a specific range designated by the marker setting step and a preset marker thickness. After creating the initial marker information, the marker information is optimized by changing the thickness of the marker based on the area information of the character read in the document data reading step to create the marker information. It was made.

In an electronic filing method according to an eleventh aspect, in the tenth aspect, the optimization of the initial marker information is performed in all character areas based on the character area information read in the document data reading step. The uppermost vertical position and the lowermost vertical position are obtained, and the initial marker information is changed according to the result.

In an electronic filing method according to a twelfth aspect, in the ninth to eleventh aspects, the marker information comprises marker position information, thickness information, and color information.

In an electronic filing method according to a thirteenth aspect, a document reading step for reading the image data of the document, and character recognition is performed on the image data of the document read by the document reading step, and the document is written on the document. A character recognizing step of extracting area information of each character, and storing image data of the document read by the document reading step, area information of the character extracted by the character recognition step, and first marker information in association with each other. A document storing step, a document data reading step of reading image data, character area information, and first marker information of the document stored by the document storing step; and an image data of the document read by the document data reading step. And the first marker information, and A document displaying step of displaying the marker information of the document, a marker setting step of specifying a specific range for setting a marker on the image data of the document displayed by the document displaying step, and a marker setting step of specifying the specific range. A marker information generating step of determining the thickness of the marker based on the range and the area information of the character read in the document data reading step to generate the second marker information; and storing the marker information in the document storing step. A marker information updating step of rewriting the contents of the first marker information with the contents obtained by adding the second marker information created in the marker information creating step.

In an electronic filing method according to a fourteenth aspect, in the thirteenth aspect, the marker information creating step is performed based on a specific range designated by the marker setting step and a preset marker thickness. After creating the initial marker information, the thickness of the marker is changed based on the area information of the character read in the document data reading step to optimize the initial marker information, and the second marker information is It is intended to be created.

In an electronic filing method according to a fifteenth aspect, in the fourteenth aspect, the optimization of the initial marker information is performed in all character areas based on the character area information read in the document data reading step. The uppermost vertical position and the lowermost vertical position are obtained, and the initial marker information is changed according to the result.

The sixteenth invention provides an electronic filing method according to the thirteenth to fifteenth inventions, wherein
The second marker information includes marker position information, thickness information, and color information.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an electronic filing apparatus according to one embodiment of the present invention.

This electronic filing apparatus includes a document reading unit 10, a character recognition unit 11, a document registration unit 12, a file device 13, a document data reading unit 14, a document data management unit 15, a document display unit 16 And a marker setting unit 17, a marker information creating unit 18, and a marker information writing unit 19.

The document reading unit 10 reads image data of a document read from a scanner or the like, and supplies the image data to the character recognition unit 10 and the document registration unit 12. The character recognition unit 11 receives image data of a document from the document reading unit 10, performs character recognition on the image data, extracts a character string described in the document and area information of each character, and extracts the extracted document. Is supplied to the document registration unit 12.

The document registration unit 12 receives the image data of the document from the document reading unit 10, and receives the character string and character area information of the document from the character recognition unit 11.
Creates document search information such as keywords for searching the document later from the document character string or an index for full-text search, and associates the image data of the document with the character string and character area information with the document search information. Register in the file device 13.

The file device 13 stores image data of a document, character strings, character area information, and the following marker information in association with document search information, and desirably uses a database.

The document data reading section 14 reads the image data of the document, the character string, the area information of the character, and the following marker information from the file device section 13, and converts the image data of the document, the character string, and the following marker information into the document data. The information is supplied to the management unit 15 and the character area information is supplied to the marker information creation unit 18.

The document data management section 15 receives the image data of the document, the character string, and the following marker information from the document data reading section 14 and also outputs the marker information creation section 1
8 receives the following marker information, supplies the image data of the document and the following marker information to the document display unit 16, and supplies the following marker information to the marker information writing unit 19.

The document display unit 16 includes a document data management unit 15
Receives the image data of the document and the following marker information, displays the image data of the document, and displays a marker including the position information, the thickness information, and the color information of the marker information on the image data of the document.

The marker setting section 17 supplies the marker information creation section 18 with the position information of the marker designated by the operator on the display screen of the document display section 16. The marker information creating unit 18 receives the character area information from the document data reading unit 14, receives the marker position information from the marker setting unit 17, and extracts the marker thickness information from the character area information and the marker position information. The marker information is determined, marker information including position information, thickness information, and preset marker color information is created, and the marker information is supplied to the document data management unit 15.

The marker information writing section 19 receives the marker information from the document data management section 15 and writes the marker information into the file device 13 in association with the image data of the document, the character string, and the area information of the character.

The electronic filing apparatus is provided with various components other than those described above for realizing functions such as searching and printing with respect to the information of the document stored in the file device 13. However, since it is not the focus of the present invention, the description thereof will be omitted.

Next, the operation of the document registration processing according to the electronic filing apparatus configured as described above will be described with reference to the flowchart of FIG.

First, the processing is started in response to a start instruction from the operator (step 20), and image data for one page of the document read by the scanner or the like is read into the memory (step 21). Then, character recognition is performed on the read image data, and character region information including a horizontal position left, a vertical position top, a horizontal position right, and a vertical position bottom at the upper left corner and a lower right corner of each character region. The character code is extracted as character information (step 22).

FIG. 3 is a diagram for explaining character area information extracted by character recognition. FIG. 2 shows a state in which character recognition is performed on image data of a document, and regions 30, 31, 32, 33, and 34 of each character of "Sashisuse Soso" are extracted. Further, as area information of the character of the area 30, a point of coordinates (left, top) and a point of coordinates (right)
(t, bottom). Since the character recognition method is not the focus of the present invention, a detailed description thereof will be omitted.

Next, based on the image data of the document read in step 21 and the character information extracted in step 22, page information composed of document image data, character information and marker information as shown in FIG. Is created (step 23). However, in step 23, page information is created on the assumption that there is no marker information data.

Then, it is determined whether or not the next page exists in the document (step 24).
Steps 1 to 4 are repeated for all pages of the document.
Step 24 is repeated. When the creation of the page information of all pages is completed, from the character string of the page information of each page, document search information such as a keyword for later searching a document or an index for performing a full-text search is created. Further, based on the unique document ID and page ID, the page information of each page and the document search information are associated with each other and registered in the database (step 25), and the process ends (step 26).

Next, the operation of the document initial display process in the electronic filing apparatus configured as shown in FIG. 1 will be described with reference to the flowchart of FIG.

First, the process is started by an operator's start instruction (step 50), and the operator designates a document on the document list display screen (in this case, the page is 1).
The page to be displayed and the page to be displayed are determined, for example, by designating another page of the already displayed document (step 51). Next, the page information stored in association with the page of the document determined in step 51 is read from the database, and from the read page information, the image data is stored in the buffer image, the character information is stored in the buffer text, and the marker information is stored in the buffer mark.
er (step 52), and the buffer im
The image data of the age is displayed (step 53).

Then, it is determined whether or not there is marker information in the buffer marker (step 54). If there is no marker information, the process is terminated (step 57).
If there is marker information in step 54, the buffer m
The marker information of the first marker is obtained from the arcer (step 55), and the point (left, top) and the point (ri) are obtained.
ght, bottom), the white bit (0-bit portion) of the image data is displayed in the color designated by color (step 56), and the process returns to step 54.

Steps 54 to 5 until all the marker information of the buffer marker is displayed.
6 is repeated, and when all the marker information of the buffer marker is displayed, the process ends (step 5).
7).

FIG. 6 shows an example of a display screen obtained by the above-described document initial display processing. In this figure, image data of a page of a document is displayed, and a point 60 of coordinates (left, top) and a coordinate (right, top) are used as markers.
The background portion of the character in an area 62 consisting of a dot 61 (bottom) is displayed in a designated color.

Next, the operation of marker setting processing in the electronic filing apparatus configured as shown in FIG. 1 will be described with reference to the flowchart of FIG. Here, the thickness of the preset default marker is set to wid.
th, the color of the preset marker is color.

First, after the document image data and the marker information are displayed by the document initial display process, the operator starts the process by pressing the button of the pointing device on the document image data display screen ( Step 70), the horizontal position x of the pointer at that time
1 and the vertical position y1 are obtained (step 71). Next, when the operator moves while holding down the button of the pointing device, the horizontal position x2 and the vertical position y2 of the pointer at that time are acquired (step 7).
2).

Then, it is determined whether the preset marker setting direction is the horizontal direction (step 73). If the marker setting direction is the horizontal direction, the area (x1, y1-
(Width / 2), x2, y1 + (width /
2)) and color (step 74). If the marker is set in the vertical direction, the area (x1- (width / 2), yl, x1 +
Marker information consisting of (width / 2), y2) and color is created (step 75), and the white bit (0 bit) portion of the image data in the area of the created marker information is designated by the color designated by color. Is displayed (step 76).

FIG. 8 is a diagram for explaining a horizontal marker area having a default thickness, which is created by the process of step 74. In the figure, the point (x1, y1)
This indicates that the horizontal marker area 85 having the default marker width is determined from the point (x2, y2).

Next, it is determined whether or not the operator has raised the button of the pointing device (step 77). If the operator has not yet raised the button of the pointing device, the flow returns to step 72 to continue until the operator has raised the button of the pointing device. Steps 72 to 77 are repeated.

When the operator raises the button of the pointing device, it is determined whether the preset marker setting direction is horizontal (step 78). If the marker setting direction is horizontal, the marker information in the horizontal direction is determined. Optimization is performed (step 79). If the marker setting direction is the vertical direction, optimization of the marker information in the vertical direction is performed (step 80).

After the marker displayed in step 76 is deleted, the marker is displayed with the marker information optimized in step 79 or step 80 (step 8).
1), the marker information is added to the end of the buffer marker (step 82), and the process ends (step 83).

Next, the process of optimizing the marker information in the horizontal direction (step 79) executed in the marker setting process will be described in more detail with reference to the flowchart of FIG.

First, from the character information text acquired in step 52 in the initial display processing of the document, area information of a character having an area that intersects a straight line consisting of points (x1, y1) and (x2, y1) is buffered. mark ・ t
ext (step 90).

Next, it is determined whether or not there is character area information in the buffer mark / text (step 91). If there is character area information in the buffer mark / text, all the character areas in the buffer mark / text are read. The top vertical position top and the bottom vertical position bot
tom (step 92), and the marker information created in step 74 is stored in the area (x1, top, x2, bo).
(tom) and marker information (step 93), and the process proceeds to step 81. If there is no character area information in the buffer mark / text in step 91, the process directly proceeds to step 81 without changing the marker information created in step 74.

FIG. 10 is a diagram for explaining the process of optimizing the marker information in the horizontal direction (step 79). In the figure, a region 10 is a character region that intersects a straight line 100 determined by points (x1, y1) and (x2, y2).
1, 102, 103, 104, and 105 are acquired, and the area 106 of the marker is determined from the vertical position top and the vertical position bottom.

The operation of optimizing the marker information in the vertical direction (step 80) in the marker setting processing can be performed by the same method as the optimizing processing of the horizontal marker information (step 79). The description is omitted.

FIG. 11 shows an example of a document display screen by the marker setting processing as described above. In the figure, the character portions 110, 111, 112 are set by the marker setting processing.
Indicates that the marker set in the column is set with a marker thickness suitable for the character height of each character portion.

Next, the operation of the marker information updating process in the electronic filing apparatus configured as shown in FIG. 1 will be described with reference to the flowchart of FIG.

First, after performing the initial display processing of the document or performing the marker setting processing thereafter, the operator starts the processing by instructing the deletion processing of the document display screen (step). 120). Next, a message to confirm whether or not to update the marker information is displayed (step 121), and it is determined whether or not the operator has instructed to update the marker information (step 122).

When the operator instructs to update the marker information, the contents of the marker information of the page information of the document managed in the database are rewritten to the contents of the buffer mark text secured in the initial display processing of the document. (Spub 123), the display screen of the document is erased (Step 124), and the process is terminated (Step 125).

If the operator does not give an instruction to update the marker information, the marker information is not updated, the display screen of the document is deleted (step 124), and the process is terminated (step 125).

As described above, in the present embodiment, character recognition is performed on the read image data, and character information including a character string written in a document and area information of each character is extracted. Further, page information including image data of the document, character information, and marker information is stored, and the stored page information is read. Then, the image data of the document and the marker information are displayed, a specific range is designated on the image data of the displayed document, and the marker is determined from the designated range and the character area information obtained from the page information. Determine the area. Further, marker information including marker area information and marker color information is created, and the contents of the marker information of the page information of the document managed by the database are rewritten with the added contents of the created marker information.

Thus, in setting a marker on the image data of a document, an appropriate marker thickness can be easily set. Furthermore, in the specification of the position for setting the marker, an appropriate marker area is set regardless of the position within the character portion, so that the position for setting the marker can be easily specified.

In the above embodiment, a character string written in a document is extracted by character recognition, and the character string is used for creating document search information. You do not have to extract the character string.

[0071]

As described in detail above, according to the electronic filing apparatus and the electronic filing method of the present invention, it is possible to easily set an appropriate marker thickness in setting a marker on image data of a document. Becomes possible.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of an electronic filing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart illustrating an operation of a document registration process.

FIG. 3 is a diagram illustrating region information of a character extracted by character recognition.

FIG. 4 is a diagram showing a configuration of page information.

FIG. 5 is a flowchart illustrating an operation of a document initial display process.

FIG. 6 is a diagram showing a screen example of an initial display of a document.

FIG. 7 is a flowchart illustrating an operation of a marker setting process.

FIG. 8 is a view for explaining a horizontal marker area having a default thickness.

FIG. 9 is a flowchart illustrating an operation of a process of optimizing marker information in the horizontal direction.

FIG. 10 is a diagram illustrating a process of optimizing marker information in the horizontal direction.

FIG. 11 is a diagram showing an example of a document display screen by a marker setting process.

FIG. 12 is a flowchart illustrating an operation of a marker information update process.

FIG. 13 is a block diagram showing a configuration of a conventional electronic filing apparatus.

FIG. 14 is a diagram illustrating an example of a display screen of a document in which a marker is set in a conventional electronic filing apparatus.

[Explanation of symbols]

 Reference Signs List 10 Document reading unit 11 Character recognition unit 12 Document registration unit 13 File device 14 Document data reading unit 15 Document data management unit 16 Document display unit 17 Marker setting unit 18 Marker information creation unit 19 Marker information writing unit

Claims (16)

[Claims] 1. A document reading means for reading image data of a document, performing character recognition on the image data of the document read by the document reading means, and extracting area information of each character described in the document. Character recognizing means, document storing means for storing image data of a document read by the document reading means and area information of characters extracted by the character recognizing means in association with each other, and a document stored by the document storing means Document data reading means for reading image data and character area information of the document, document display means for displaying image data and marker information of the document read by the document data reading means, and display by the document display means. Specify a specific range for setting markers on the image data of the document Marker setting means for determining the thickness of the marker based on the range specified by the marker setting means and the area information of the character read by the document data reading means, and generating the marker information And an electronic filing device. 2. The marker information creating means creates initial marker information based on a specific range specified by the marker setting means and a preset marker thickness, and then reads the initial marker information by the document data reading means. 2. The electronic filing apparatus according to claim 1, wherein the marker information is created by optimizing the initial marker information by changing the thickness of the marker based on the region information of the extracted character. 3. The optimization of the initial marker information is performed in such a manner that an uppermost vertical position and a lowermost vertical position in all character areas are obtained based on character area information read by the document data reading means. The electronic filing apparatus according to claim 2, wherein the initial marker information is changed according to the following. 4. The electronic filing apparatus according to claim 1, wherein the marker information includes marker position information, thickness information, and color information. 5. A document reading unit for reading image data of a document, performing character recognition on the image data of the document read by the document reading unit, and extracting area information of each character described in the document. Character recognition means; document storage means for storing image data of the document read by the document reading means, area information of the character extracted by the character recognition means, and first marker information in association with each other; Means for reading image data, character area information and first marker information of the document stored by the means; image data and first marker information of the document read by the document data reading means; Document display means for displaying the marker information of No. 2, and a sentence displayed by the document display means Marker setting means for specifying a specific range for setting a marker on the image data of the image data; and a marker based on the range specified by the marker setting means and the area information of the character read by the document data reading means. Marker information creating means for determining the thickness of the first marker information and creating the second marker information, and the contents of the first marker information stored in the document storage means are created by the marker information creating means. An electronic filing apparatus, comprising: a marker information updating unit that rewrites the content with added content of the second marker information. 6. The marker information creating unit creates initial marker information based on a specific range specified by the marker setting unit and a preset marker thickness, and then reads the initial marker information by the document data reading unit. 6. The electronic filing according to claim 5, wherein the initial marker information is optimized by changing the thickness of the marker based on the area information of the extracted character, and the second marker information is created. apparatus. 7. The optimization of the initial marker information is performed by obtaining the top vertical position and the bottom vertical position in all character regions based on the character region information read by the document data reading means. The electronic filing apparatus according to claim 6, wherein the initial marker information is changed according to the following. 8. The electronic filing apparatus according to claim 5, wherein the first and second marker information are composed of marker position information, thickness information, and color information. 9. A document reading step for reading image data of a document, and character recognition is performed on the image data of the document read by the document reading step to extract area information of each character written in the document. A character recognizing step, a document storing step of storing image data of the document read in the document reading step in association with character area information extracted in the character recognizing step, and a document stored in the document storing step A document data reading step of reading image data and character area information of the document, a document display step of displaying image data and marker information of the document read by the document data reading step, and a document display step of displaying by the document display step. On the image data of the document A marker setting step of designating a specific range for setting a marker; and determining the thickness of the marker based on the range specified by the marker setting step and the character area information read by the document data reading step. And a marker information creating step of creating the marker information. 10. The marker information creating step creates initial marker information based on a specific range specified in the marker setting step and a preset marker thickness, and then reads in the document data reading step. 10. The electronic filing method according to claim 9, wherein the marker information is created by optimizing the initial marker information by changing the thickness of the marker based on the region information of the extracted character. 11. The optimization of the initial marker information is performed in such a manner that the top vertical position and the bottom vertical position in all character regions are obtained from the character region information read in the document data reading step. 11. The electronic filing method according to claim 10, wherein the initial marker information is changed according to the following. 12. The electronic filing method according to claim 9, wherein the marker information includes position information, thickness information, and color information of the marker. 13. A document reading step of reading image data of a document, and character recognition is performed on the image data of the document read by the document reading step to extract area information of each character written in the document. A character recognizing step; a document storing step of storing image data of the document read in the document reading step, area information of the character extracted in the character recognizing step, and first marker information in association with each other; Reading document image data, character area information, and first marker information stored in the document, reading the image data and first marker information of the document read in the document data reading step; 2
A document display step of displaying the marker information of the document, a marker setting step of specifying a specific range for setting a marker on the image data of the document displayed by the document display step, A marker information generating step of determining the thickness of the marker based on the range and the area information of the character read in the document data reading step to generate the second marker information; and storing the marker information in the document storing step. An updating step of rewriting the contents of the first marker information with the contents obtained by adding the second marker information created in the marker information creating step. 14. The marker information creating step creates initial marker information based on a specific range specified in the marker setting step and a preset marker thickness, and then reads in the document data reading step. 14. The electronic filing according to claim 13, wherein the initial marker information is optimized by changing the thickness of the marker based on the region information of the extracted character, and the second marker information is created. Method. 15. The optimization of the initial marker information is performed in such a manner that the top and bottom vertical positions in all character regions are obtained from the character region information read in the document data reading step. The electronic filing method according to claim 14, wherein the initial marker information is changed according to the following. 16. The electronic filing method according to claim 13, wherein the first and second marker information are composed of marker position information, thickness information, and color information.