JP2015232877A - Document masking system, document masking method, and document masking program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a need for re-setting positional information representing a position for masking process even if a style of a document is changed because of revision of an original document, with an image such as diagram being a target of masking as well.SOLUTION: A document masking system includes a memory part 4 which stores an original document that contains a start point mark and an end point mark for specifying a start point and an end point in a masking range and is a target for masking process, a mark reading part 21 which reads the start point mark and the end point mark that are contained in the original document stored in the memory part 4, a pairing process part 22 which performs pairing between the start point mark and the end point mark, relating to the start point mark and the end point mark that are read, and a masking process part 23 which performs the masking process with a content contained between the start point mark and the end point mark which are paired by the pairing process part 22 for the original document.

Description

  The present invention relates to a document masking system, a document masking method, and a document masking program.

  An organization such as a company or organization may not want to disclose part of the contents of a document. For example, it may be preferable to partially hide the contents of a document in accordance with the contents of duties such as job titles or departments to which they belong. In that case, a masking process may be performed so that a portion that is not desired to be disclosed is not visible (for example, Patent Document 1). In Patent Document 1, masking is performed by replacing it with a display for masking (black characters or the like).

JP 2004-145529 A

  In Patent Document 1, position information indicating a position to be masked is stored in a masking information management unit that is a storage unit different from the original document. Therefore, if the appearance of the document changes greatly due to revision of the original document, it is necessary to set again the position information indicating the position to be masked, and the processing becomes complicated.

  Further, in Patent Document 1, only a character is masked, and an image such as a figure cannot be masked.

  The present invention has been made in view of the above, and it is not necessary to set position information indicating a masking position again even if the appearance of the document changes due to revision of the original document, and for images such as graphics. Another object of the present invention is to provide a document masking system, a document masking method, and a document masking program that can be masked.

  In order to solve the above-described problems and achieve the object, a document masking system according to an aspect of the present invention includes a start point mark and an end point mark for specifying a start point and an end point of a masking range, and is a target of masking processing. A storage unit that stores an original document, a mark reading unit that reads the start point mark and the end point mark included in the original document, and a mark reading unit that reads the original document stored in the storage unit A pairing processing unit that performs pairing of the start point mark and the end point mark with respect to the start point mark and the end point mark; and the start point mark that has been paired by the pairing processing unit with respect to the original document; And a masking processing unit for masking the content included between the end point marks. According to such a configuration, even if the appearance of the document changes due to revision of the original document, it is not necessary to set the position information indicating the position to perform the masking process again, and the image such as a figure is also to be masked. Can do.

  The pairing processing unit preferably performs pairing of the start point mark and the end point mark with the entire original document stored in the storage unit as one coordinate system. By processing all the original documents by connecting the entire original document as one coordinate system, the masking range across the pages can be processed.

  The pairing processing unit counts the number of end point marks to be paired with reference to the start point mark included in the original document, and when the number of end point marks is only one, Perform pairing with the end point mark, then count the number of end point marks to be paired with respect to other start point marks, and if there is only one end point mark, the start point mark and the end point mark It is preferable to perform pairing with the mark. By performing pairing in this way, it is possible to reduce the number of processing targets one by one and perform pairing processing for all start point marks and end point marks included in the original document.

  The pairing processing unit preferably performs error processing when there is no start point mark having only one end point mark to be paired. By performing error processing, the user who is notified of the error content can recognize the error and reset the start point mark and the end point mark.

  The masking process performed by the masking processing unit may be a process of deleting contents included between the start point mark and the end point mark. By deleting the content included between the start point mark and the end point mark, it is possible to reliably prevent the content of the masking range from being visually recognized.

  The masking process performed by the masking processing unit may be a process of displaying a masking pattern on the content included between the start point mark and the end point mark. By placing and displaying the masking pattern, it can be made invisible on the display screen of the display unit.

  The original document stored in the storage unit includes a header mark for specifying a header position or a footer mark for specifying a footer position of each page constituting the original document, and the masking processing unit Preferably, the header position specified by the header mark and the footer position specified by the footer mark are excluded from the masking process. By excluding the header and footer portions from the masking range, the user can check the information included in the header and footer portions.

  Preferably, the masking processing unit creates a range confirmation document for confirming a masking range in which contents included between the start point mark and the end point mark are displayed in a manner different from other parts. . Thereby, it can be easily confirmed whether or not the masking range is appropriate.

  It is preferable that the apparatus further includes an input unit for inputting the original document, and the storage unit stores the original document created by input by the input unit. Thereby, the original document input from the outside can be a target of the masking process.

  A document masking method according to an aspect of the present invention includes a step of storing an original document to be masked in a storage unit including a start point and an end point mark for specifying a start point and an end point of a masking range, and the storage unit A step of reading the start point mark and the end point mark included in the original document by a mark reading unit, and the start point mark and the end point mark read by the mark reading unit. The pairing processing unit performs pairing of the start point mark and the end point mark, and the original document is included between the start point mark and the end point mark paired by the pairing processing unit. And masking the content to be masked by the masking processing unit. According to this method, even if the appearance of the document changes due to the revision of the original document, there is no need to set again the position information indicating the position to be masked, and an image such as a figure can be a masking target. .

  A document masking program according to an aspect of the present invention includes a step of storing an original document to be masked in a storage unit including a start point mark and an end point mark for specifying a start point and an end point of a masking range, and the storage unit A step of reading the start point mark and the end point mark included in the original document by a mark reading unit, and the start point mark and the end point mark read by the mark reading unit. The pairing processing unit performs pairing of the start point mark and the end point mark, and the original document is included between the start point mark and the end point mark paired by the pairing processing unit. Masking the content to be masked by the masking processing unit, Is a program to be executed by the computer. If this program is used, it is not necessary to set position information indicating the masking position again even if the appearance of the document changes due to revision of the original document, and images such as figures can be masked. .

  According to the present invention, it is not necessary to set again the position information indicating the masking processing position even if the appearance of the document changes due to the revision of the original document, and an image such as a figure can be a masking target. .

FIG. 1 is a diagram illustrating a configuration example of a document masking system according to an embodiment. FIG. 2 is a flowchart illustrating an example of a public document creation process by the document masking system according to the embodiment. FIG. 3 is a flowchart illustrating an example of the pairing process of the start point mark and the end point mark. FIG. 4 is a diagram illustrating an example of the pairing process. FIG. 5 is a diagram illustrating an example of the pairing process. FIG. 6 is a diagram illustrating an example of the pairing process. FIG. 7 is a diagram illustrating an example of the pairing process. FIG. 8 is a diagram illustrating an example of a masking range. FIG. 9 is a diagram illustrating an example of processing for acquiring the coordinate position of each mark. FIG. 10 is a diagram illustrating an example of all public documents after each mark is deleted. FIG. 11 is a diagram illustrating an example of a partially public document that has been subjected to masking processing. FIG. 12 is a diagram showing an example of a range confirmation document for confirming the masking range. FIG. 13A is a diagram illustrating an example of a document on which error processing is performed. FIG. 13B is a diagram illustrating an example of a document on which error processing is performed.

  Hereinafter, an embodiment of a document masking system according to the present invention will be described in detail with reference to the drawings. In addition, the following embodiment is an illustration and the range of invention is not limited to them. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated.

(Configuration example of document masking system)
FIG. 1 is a diagram illustrating a configuration example of a document masking system according to the present embodiment. As shown in FIG. 1, the document masking system 10 according to the present embodiment includes an input unit 1, a control unit 2, a display unit 3, and a storage unit 4. Each part constituting the document masking system 10 is configured by, for example, a computer, and is realized by hardware resources of a normal computer such as a ROM, a RAM, a CPU, an input device, an output device, a communication interface, a hard disk, a recording medium, and a driving device thereof. Is done.

  The input unit 1 inputs an original document to be masked. The original document is, for example, an electronic document file created by word processing software (word processor software). By providing the input unit 1, an original document input from the outside can be a target of masking processing.

  The control unit 2 includes a CPU and the like, and controls each unit of the present system and executes a document masking program. By executing the document masking program, the control unit 2 performs processing for creating a fully public document, a partial public document, and a range confirmation document based on the original document. The control unit 2 includes a mark reading unit 21, a pairing processing unit 22, and a masking processing unit 23. Each of these units is realized by a CPU or the like executing a document masking program.

  The mark reading unit 21 reads a mark included in the original document input by the input unit 1.

  For the marks read by the mark reading unit 21, the pairing processing unit 22 includes a mark (hereinafter, appropriately referred to as a start point mark) that represents the masking range and a mark (hereinafter, appropriately) that represents the end point of the masking range. Pairing with an end point mark).

  The masking processing unit 23 performs masking processing based on the start point mark and end point mark that the pairing processing unit 22 has paired.

  The display unit 3 displays the document masked by the control unit 2. The document masking system 10 desirably displays a document converted into a format that cannot be edited and altered on the display unit 3. The document masking system 10 may include a printing unit that prints the masked document instead of or together with the display unit 3.

  The storage unit 4 stores a document masking program and data necessary for the public document creation process by the control unit 2. The storage unit 4 stores an original document to be masked. For example, the storage unit 4 stores the original document input from the outside by the input unit 1.

  With the above configuration, the document masking system 10 according to the present embodiment performs processing for inputting an original document and creating a public document. The document masking system 10 according to the present embodiment includes an entire public document in which the same contents as the original document are described, a partial public document that is masked based on the start point mark and the end point mark included in the original document, and a masking range. Create a range confirmation document to confirm

(Masking range)
The document masking system 10 according to this embodiment specifies a range in which masking processing is performed based on a mark inserted in the original document. More specifically, in the present embodiment, a start point mark and an end point mark for specifying a range to be masked are inserted in advance in the body of the original document. Predetermined keywords and symbols are used for the start point mark and the end point mark.

(Example of public document creation processing)
FIG. 2 is a flowchart showing an example of a public document creation process by the document masking system according to the present embodiment. The public document creation process is a process of creating a partial public document, all public documents, and a range confirmation document from the original document.

  In FIG. 2, an original document B1 is a document that is a processing target of a public document creation process. In this original document B1, a start point mark is inserted in advance at the position of the start point indicating the upper left coordinate of the rectangular masking range that the partial disclosure target person does not want to show, and an end point mark is inserted at the end point position indicating the lower right coordinate. Keep it. Further, when excluding the header portion and footer portion in the document from the masking range, the header lower end mark indicating the bottom of the header portion and the footer upper end mark indicating the top of the footer portion are set in the original document B1. Insert it into the page.

  The start point mark or the end point mark is, for example, a special symbol, a specific keyword or symbol, or a mark by a dedicated function for setting a masking position. The character string used for the start point mark is, for example, “KOKOKARA”. The character string used for the end point mark is, for example, “KOKOMADE”. The character string used for the header mark is, for example, “KOKOHED”. The character string used for the footer mark is, for example, “KOKOFUT”. In addition to these, each mark can be represented by a combination of characters or a special symbol by being predetermined.

  It is preferable to use a character string that does not appear in the text as a mark. A character string predetermined as a mark may be inserted into the document by a copy and paste operation. If the document creation application software has a text box function, a mark inserted into the original document by the function may be used as a start point mark, an end point mark, a header mark, or a footer mark. A text box is an area for placing characters and symbols at an arbitrary position in a document.

  In the mark reading process in step S201 in FIG. 2, the start point mark indicating the start point and the end point mark indicating the start point of the masking range, the header lower end mark, and the footer upper end included in the original document B1 stored in the storage unit 4 are included. Read the coordinates of the mark.

  In the pairing processing of the start point mark and end point mark in step S202, the read start point mark and end point mark are combined as a pair target, and processing for specifying the masking range is performed.

  In the mark deletion process in step S203, a process of deleting each mark included in the original document B1 is performed. The document from which each mark included in the original document B1 is deleted becomes the all public document B2. The all public document B2 is a document created from the original document B1 for all persons to be disclosed. All the public documents B2 are preferably documents in which the marks included in the original document B1 are deleted.

  In the masking process in step S204, a partial public document B3 and a range confirmation document B4 are created. The partially disclosed document B3 is a document for a partial disclosure target person who has performed masking processing on the masking range of the original document B1 from which each mark has been deleted.

  The range confirmation document B4 is a document in which the contents of the masking range are displayed in a different manner from the other parts, with the characters and the like of the original document B1 from which the mark has been deleted intact. The range confirmation document B4 is a document in which the masking range is displayed in a format in which the characters of the original document B1 can be visually recognized in order to confirm whether or not the mark specifying the masking range is correctly inserted into the original document B1. For example, the content included in the masking range is a document in which the background color is displayed with a fluorescent color or the like, or the masking range is surrounded by a broken line. By referring to the range confirmation document B4, it is possible to confirm whether or not the start point mark and the end point mark specifying the correct masking range are correctly inserted into the original document B1.

(Starting point mark and end point mark pairing process)
If there are N masking ranges (N is a natural number) in the document, N start and end marks are required. In the present embodiment, the start point mark and the end point mark are individually distinguished by assigning a serial number to the start point mark and the end point mark. When manually inserting the start point mark and the end point mark into the original document, it is troublesome to add a number to each start point mark and each end point mark.

Therefore, in this embodiment, when at least the start point mark and the end point mark are added, the pairing process between the start point mark and the end point mark is automatically performed so that the masking range can be specified. However, the following conditions are assumed. That is,
(1) The end point mark is in the right direction from the start point mark.
(2) The end point mark is below the start point mark.
(3) A rectangle having a diagonal line connecting the start point mark and the end point mark is set as a masking range.
(4) The plurality of masking ranges do not overlap each other.
It is.

  Based on the above preconditions, the pairing process of the start point mark and end point mark in step S202 described above will be described with reference to FIG. FIG. 3 is a flowchart illustrating an example of the pairing process of the start point mark and the end point mark.

  In step S301 in FIG. 3, an allocation process for allocating a start point number to each mark is performed. For example, the start point number is assigned to the start point mark in order from the right to the left and from the bottom to the top with the lower right as the start position.

  In step S302, processing for selecting one start point mark to be paired is performed. For example, a start point mark that is not paired with an end point mark is selected as a pair target with a small start point number.

  In step S303, processing for counting the end point marks to be paired is performed. For example, among the end point marks at the lower right of the current start point mark of the pair, the end point mark that is not paired with the start point mark is set as the end point mark to be paired, and the number of the end point marks is counted.

  In step S304, if the number of end point marks to be paired is “1” as a result of the count in step S303, the process proceeds to step S305, and the start point mark and end point mark are paired (pairing process). I do. In the pairing process, the same number as the start point number of the start point mark to be paired is assigned to the end point mark to be paired. Thereby, the rectangular range specified by the pair target end point mark and the pair target start point mark is set as the masking range.

  In step S306, it is determined whether there is a start point mark that is not paired with the end point mark. As a result of the determination in step S306, if there is no start point mark that is not paired with the end point mark (No in step S306), the process ends. On the other hand, as a result of the determination in step S306, if there is a start point mark that is not paired with the end point mark (Yes in step S306), the process returns to step S302.

  If the number of end point marks to be paired is “2 or more” as a result of the count in step S304, the process proceeds to step S307, and it is determined whether there is a start point mark to be paired. In step S307, it is determined whether there is a start point mark with a number larger than the start point number of the current pair target start mark. If there is a start point mark to be paired as a result of the determination in step S307 (Yes in step S307), the process proceeds to step S308, and reselection processing of the start point mark to be paired is performed. In the reselection processing in step S308, among the start point marks that are not paired with the end point mark, the start point number with the smallest start point number among the start point numbers of the start point mark of the current pair target start mark is the pair target. Select as start point mark. Thereafter, the process returns to step S303.

  If there is no start point mark to be paired in step S307 (No in step S307), the process proceeds to step S309, error processing is performed, and the process ends. If the number of end point marks to be paired is “0” as a result of the count in step S304, the process proceeds to step S310 and error processing is performed. In the error process, since there is no end point mark corresponding to the start point mark, the masking process and the entire public document creation process are completed.

  In the error processing, for example, the location that caused the error may be displayed and presented to the user, or a method for solving the error may be presented to the user.

  In this embodiment, all the pages of the original document are combined, and processing is performed as one coordinate system with the upper left as the origin. In this embodiment, the start point mark, end point mark, header mark, and footer mark used in the drawings are defined as shown in Table 1.

  In the present embodiment, the original document is in the horizontal writing format, but may be in the vertical writing format. In that case, the start point mark specifies the upper right of the masking range, and the end point mark specifies the lower left of the masking range. The original document is not limited to Japanese, and may be a document including a foreign language or a document only in a foreign language.

(Example of pairing process)
4 to 7 are diagrams illustrating an example of pairing processing in which a start point mark and an end point mark are paired.

  In FIG. 4, in step P1, an original document B1 including a start point mark SP and an end point mark EP, which are marks defining a masking range, is input as a processing target.

  In step P2, numbers are assigned to the start point marks SP of the original document B1 in the present example from the right to the left and from the bottom to the top. In this example, the start point marks SP1, SP2, SP3, and SP4 are used. In the following description, the start point marks SP1, SP2, SP3, and SP4 may be collectively referred to as a start point mark SPN.

  In the process P3, a straight line extending rightward from the start point mark SPN and a straight line extending downward are assumed. Then, with these straight lines as a reference, the end point marks that are present in the right direction and downward direction of the start point marks SP1, SP2, SP3, SP4, that is, the lower right direction, are processed.

  Proceeding to FIG. 5, in step P4, the number of end point marks present in the lower right direction is counted for each start point mark SP1, SP2, SP3, SP4.

  For example, the end point mark is counted while searching from the top to the bottom and searching from the left to the right based on the coordinate position of each end point mark. As a result, in this example, there is one end point mark in the lower right direction of the start point mark SP1 (“E1”: the number of end point marks E is one), and three end point marks in the lower right direction of the start point mark SP2 ( “E3”: the number of the end point mark E is three), two end points in the lower right direction of the start point mark SP3 (“E2”: the number of end point marks E is two), the lower right of the start point mark SP4 There are four end point marks in the direction ("E4": the number of end point marks E is four).

  In step P5, the start point mark SPN whose end mark number is “1” is paired with the end point mark. In this example, the start point mark SP1 and the end point mark EP1 are paired and indicated by a rectangle K1 in the drawing.

  In step P6, the number of end marks present in the lower right direction of the start point SPN that is not paired with any of the end marks is counted. In this example, except for the start point mark SP1 and the end point mark EP1 paired in the process P5, the number of end point marks present in the lower right direction is counted for each of the start point marks SP2, SP3, SP4. As a result, in this example, there are two end points in the lower right direction of the start point mark SP2 (“E2”: the number of end point marks E is two), and one end point mark in the lower right direction of the start point mark SP3 ( “E1”: the number of end marks E is one), and the end point marks are three in the lower right direction of the start point mark SP4 (“E3”: the number of end marks E is three).

  Proceeding to FIG. 6, in step P7, among the start point marks SP2, SP3, and SP4, the one having the end point number “1” and the end point mark are paired. In this example, the start point mark SP3 and the end point mark EP3 are paired and indicated by a rectangle K3 in the drawing.

  In step P8, the number of end marks existing in the lower right direction of the start point marks SPN that are not paired with any end point mark is counted. In this example, the start point marks SP2 and SP4 exist in the lower right direction except for the start point mark SP1 and end point mark EP1 paired in step P5 and the start point mark SP3 and end point mark EP3 paired in step P7. The number of end point marks to be counted is counted. As a result, in this example, there is one end point mark in the lower right direction of the start point mark SP2 ("E1": the number of end point marks E is one), and two end point marks in the lower right direction of the start point mark SP4 ( “E2”: the number of end mark E is two).

  In the process P9, of the start point marks SP2 and SP4, the one whose end mark number is “1” and the end point mark are paired. In this example, the start point mark SP2 and the end point mark EP2 are paired and indicated by a rectangle K2 in the drawing.

  Proceeding to FIG. 7, in step P10, the number of end point marks present in the lower right direction of the start point marks SPN that are not paired with any of the end point marks is counted. In this example, the start point mark SP1 and end point mark EP1 paired in step P5, the start point mark SP3 and end point mark EP3 paired in step P7, and the start point mark SP2 and end point mark EP2 paired in step P9. The number of end marks existing in the lower right direction is counted for the start point mark SP4. As a result, in this example, there is one end point mark ("E1": the number of end point marks E is one) in the lower right direction of the start point mark SP4.

  In the process P11, since the number of end marks of the start point mark SP4 is “1”, it is paired with the end point mark. In this example, the start point mark SP4 and the end point mark EP4 are paired and indicated by a rectangle K4 in the drawing.

  With the above processing, pairing is completed for the start point mark SP and the end point mark EP included in the original document B1.

  In the above processing, the pairing processing unit 22 counts the number of end point marks to be paired with reference to the start point mark included in the original document, and the number of end point marks is only one. If the start point mark and the end point mark are paired, then the number of end point marks to be paired is counted based on other start point marks, and the number of end point marks is only one. The pairing between the start point mark and the end point mark is performed. By repeating this process, the number of objects to be processed can be reduced one by one, and the pairing process can be performed for all the start point marks and end point marks included in the original document.

  By the way, it is desirable to perform error processing when the number of start point marks and the number of end point marks included in the original document B1 do not match. In this case, in the course of the pairing process, for example, there is no start point mark whose number of end point marks present in the lower right direction is “1”, and pairing is not possible. Also, for example, even when the masking ranges overlap, there is no start point mark whose number of end point marks present in the lower right direction is “1”, and pairing cannot be performed, so it is desirable to perform error processing.

  When there are a plurality of start point marks whose number of end point marks in the lower right direction is “1” and it is not possible to determine one end point mark as a pair, it is desirable to perform error processing.

  Error processing includes, for example, a method of displaying the error content on a monitor screen and notifying the user, or outputting the error content as a sound and notifying the user. By performing such error processing, the user who is notified of the content of the error can recognize the error and reset the start point mark and the end point mark.

(Example of document with masking process)
Next, an example of the masking process will be described with reference to FIGS. FIG. 8 is a diagram illustrating an example of a masking range. In FIG. 8, the masking range defined by the start point mark SP1 and the end point mark EP1 extends over two pages.

  FIG. 9 is a diagram illustrating an example of processing for obtaining the coordinate positions of the start point mark, end point mark, header mark, and footer mark. As shown in FIG. 9, in this example, all the pages constituting the original document B1 are connected with their left ends aligned and arranged in one coordinate system with the X and Y axes. In this state, the processing is advanced for the masking range. By concatenating and processing all pages, a masking range across the pages can be processed. Also, by connecting all pages and processing them, the header and footer portions can be excluded from the masking range. Thereby, the user can confirm the information included in the header and footer portions.

  FIG. 10 is a diagram illustrating an example of the entire public document B2 after the start point mark, end point mark, header mark, and footer mark are deleted. As shown in FIG. 10, the start point mark, end point mark, header mark, and footer mark have been deleted. Since it is meaningless for the user of the document and it becomes difficult to see the document if these marks are present, these marks are deleted. This can prevent the document from becoming difficult to see.

  FIG. 11 is a diagram illustrating an example of the partially public document B3 that has been subjected to the masking process. As shown in FIG. 11, the partially public document B3 is in a state in which the masking process is performed on the masking range MS designated based on the start point mark and the end point mark. Thereby, the content corresponding to the masking range MS among the contents described in the original document B1 is not visible. In this example, the portion from “3. Grounds” to “3-2. In-house experiment data” bar graph displayed in the original document B1 shown in FIG. 8 is the masking range MS and is not visible. Yes.

  FIG. 12 is a diagram showing an example of a range confirmation document B4 for confirming the masking range MS. The range confirmation document B4 is displayed in a manner different from the other portions, as indicated by the broken line portion in FIG. 12, the portion corresponding to the masking range MS of the partial disclosure document B3. By displaying the portion corresponding to the masking range MS in a manner different from the other portions, it is possible to easily confirm whether or not the masking range MS is appropriate.

  In FIG. 12, a broken line portion is, for example, a display in which the background is filled with a fluorescent color. For the range confirmation document B4, the background of the portion corresponding to the masking range MS is not limited to the fluorescent color, and may be displayed in a different manner from the other portions. The color of the character corresponding to the masking range MS may be displayed in a manner different from that of the other parts, not limited to the case where the background is filled. Thus, the masking range MS can be easily confirmed by displaying the portion corresponding to the masking range MS in a different manner from the other portions.

(Error handling)
13A and 13B are diagrams illustrating an example of a document on which error processing is performed. In the example shown in FIG. 13A, two start point marks SP11 and SP12 and two end point marks EP11 and EP12 are included in the document. Therefore, a masking range MS1 is set based on the start point mark SP11 and the end point mark EP11, and a masking range MS2 is set based on the start point mark SP12 and the end point mark EP12. Therefore, in the document shown in FIG. 13A, the masking range MS1 and the masking range MS2 overlap.

  When the masking range is set in this way, error processing is performed according to the flowchart shown in FIG. That is, as a result of the counting in step S304 of the flowchart shown in FIG. 3, the number of end point marks to be paired becomes “2 or more”, and the process proceeds to step S307. Since there is a starting point mark to be paired (Yes in step S307), even if the starting point to be paired is selected again (step S308), the number of end point marks to be paired is also “2 or more”. (Steps S303, S304, S307), since there is no start point mark to be paired (No in Step S307), the process proceeds to Step S309 and error processing is performed.

  In order to prevent error processing, it is necessary to set the start point mark and the end point mark so that the masking ranges do not overlap as shown in FIG. 13B. That is, in the example shown in FIG. 13B, the start point marks SP11, SP12, and SP13 and the end point marks EP11, EP12, and EP13 are included in the document. Therefore, the masking range MS11 is based on the start point mark SP11 and the end point mark EP11, the masking range MS2 is based on the start point mark SP12 and the end point mark EP12, and the masking range MS12 is based on the start point mark SP13 and the end point mark EP13. , Each is set. Therefore, in the document shown in FIG. 13B, the masking ranges MS11, MS12, and MS2 do not overlap each other.

  When the masking range is set in this manner, in step S304 of the flowchart shown in FIG. 3, the number of end marks to be paired with the start point mark SP13 is “1”, and the start point mark SP13 and the end point mark EP13 are paired. The process which performs is performed (step S305). Thereafter, a process of pairing the start point mark SP12 and the end point mark EP12 and a process of pairing the start point mark SP11 and the end point mark EP11 are sequentially performed, and no error process is performed.

  As a masking processing method, the masking range data is deleted (the contents contained between the start point mark and end point mark are deleted), the data is not deleted, it is covered with a masking pattern, and the masking range is displayed. Any of the methods of making it invisible so as not to be visible on the display screen may be used. In the former case, for example, it can be realized by replacing it with blanks (space symbols) having the same number of characters, and the contents of the masking range can be reliably made invisible. In the latter case, it can be realized by displaying a masking pattern on a layer above the masking range, and can be made invisible on the display screen of the display unit.

  It is preferable to delete the mark in all public documents. This is because it is considered unnecessary to specify the masking range.

  In the partially published document, the mark itself may be included in the masking range so as not to be visible, or after deleting the mark, the range based on the position of the mark before deletion may not be visible as the masking range.

(Document masking method)
The document masking method used in the document masking system described above includes a start point mark and an end point mark for specifying the start point and end point of the masking range, and storing the original document to be masked in the storage unit; For the original document stored in the storage unit, a step of reading the start point mark and the end point mark included in the original document by a mark reading unit, and the start point mark and the end point read by the mark reading unit A step of pairing the start point mark and the end point mark by a pairing processing unit with respect to a mark; and for the original document, the start point mark and the end point mark paired by the pairing processing unit A process of masking the contents included in between by the masking processing unit; Having. According to this method, even if the appearance of the document changes due to the revision of the original document, there is no need to set again the position information indicating the position to be masked, and an image such as a figure can be a masking target. .

(Document masking program)
The document masking program used in the document masking system described above includes a start point mark and an end point mark for specifying a start point and an end point of a masking range, and storing an original document to be masked in a storage unit; For the original document stored in the storage unit, the step of reading the start point mark and the end point mark included in the original document by a mark reading unit, and the start point mark and the end point read by the mark reading unit For the mark, the pairing processing unit performs pairing of the start point mark and the end point mark, and for the original document, the pair of the start point mark and the end point mark paired by the pairing processing unit. The masking process Is a program for executing the steps of grayed process, to the computer. If this program is used, it is not necessary to set position information indicating the masking position again even if the appearance of the document changes due to revision of the original document, and images such as figures can be masked. .

(Summary)
Since the document masking system 10 inserts the start point mark and the end point mark in the text of the original document, the masking process of the specified range can be continuously performed even when the text is added or revised. That is, instead of preparing separate data for specifying the masking range, the start point mark and the end point mark are inserted in the text, so that the mark position can be changed even if the size of the text masking range changes. Since it follows, a masking range can be maintained appropriately.

  By specifying the masking range with, for example, a rectangle based on the start point mark and the end point mark, the masking processing unit 23 fills the masking range with an arbitrary color, not only for characters and symbols but also for figures and images. Masking processing can be performed.

  According to this system, since the text of the original document contains marks that indicate the start and end points of the masked range, the masking process for the specified range is possible even if the text of the original document is added or revised. Can be continued.

  If the mark is described in the text of the original document, the masking range is set based on the preset start point mark and end point mark even if the size of the text or figure included in the masking range changes. Even if the content of the document is frequently changed (addition, change, or deletion of characters or symbols), the mark position follows before and after the change, and an appropriate masking range can be maintained.

  By specifying the masking range by a rectangle with the start point and the end point as a reference, it is possible to display the masking range with an arbitrary color. Further, not only characters or symbols but also images such as figures or photographs can be masked. When the masking range extends over a plurality of pages, marks at the lower end of the header and the upper end of the footer can be excluded from the masking processing target (excluded from the masking range).

  That is, when the masking range extends over a plurality of pages, a header mark and a footer mark for specifying the position of the lower end of the header and the position of the upper end of the footer are provided in the original document. This part can also be excluded from the masking process. The header and footer may contain information such as page numbers and document names, and these information are displayed without being masked. Thereby, the user can visually recognize the information included in the header and the footer.

  It is preferable that the masking processing unit 23 deletes the start point mark, the end point mark, the header mark, and the footer mark before the masking process so that they are not displayed in the partially public document or all the public documents. In addition, it is preferable that a range confirmation document in which the masking range is displayed with a fluorescent color or the like can be displayed in such a manner that characters in the masking range can be visually recognized. Further, if the masking range can be easily confirmed, the display color of the masking range is not limited to the fluorescent color. That is, by displaying the masking range in a color other than black such as a fluorescent color, the range confirmation document displayed so that the characters in the masking range can be viewed may be displayed.

(Modification)
The document masking system according to the present embodiment can be modified as follows.

  The start point mark, end point mark, header mark, and footer mark that have been set in advance are entered in the original printed document by hand, and each mark is recognized after being read by the image scanner. Good.

  In the above embodiment, the start point mark and the end point mark are inserted into the completed document. However, a fixed form in which the start point mark and the end point mark are inserted in advance at a predetermined location is prepared, and a sentence or a figure is added to the fixed form. The original document B1 may be created by inputting the above.

  You may combine this system and a document management system. For example, the original document may be stored in the document management system, and when there is a request for browsing the document, a document that has been masked by the system may be created and presented to the user . In this way, it is not necessary to store the masked document in addition to the original document, so that the storage capacity of the storage unit can be saved.

  Although the present system is a single device block, the control unit and the storage unit, and the input unit and the display unit may be separated and connected to each other via a communication network. A plurality of input units and display units may be provided for one control unit and storage unit. That is, the server may be provided with a control unit and a storage unit, and the personal computer may be provided with an input unit and a display unit, and both may be connected via a communication network.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope of the present invention and the gist thereof, and are also included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 1 Input part 2 Control part 3 Display part 4 Memory | storage part 10 Document masking system 21 Mark reading part 22 Pairing process part 23 Masking process part B1 Original document B2 All open document B3 Partially open document B4 Range confirmation document EP, EP1-EP4 , EP11, EP12, EP13 End point mark K1-K4 Rectangular MS, MS1, MS2, MS11, MS12 Masking range SP, SP1-SP4, SP11, SP12, SP13 Start point mark

Claims (11)

A storage unit including a start point mark and an end point mark for specifying a start point and an end point of a masking range, and storing an original document to be masked;
A mark reading unit that reads the start point mark and the end point mark included in the original document for the original document stored in the storage unit;
A pairing processing unit for pairing the start point mark and the end point mark with respect to the start point mark and the end point mark read by the mark reading unit;
About the original document, a masking processing unit that masks the content included between the start point mark and the end point mark paired by the pairing processing unit;
A document masking system. 2. The document masking system according to claim 1, wherein the pairing processing unit performs pairing between the start point mark and the end point mark using the entire original document stored in the storage unit as one coordinate system. 3. The pairing processing unit counts the number of end point marks to be paired with reference to the start point mark included in the original document, and when the number of end point marks is only one, Pair with the end mark,
Next, the number of end marks to be paired is counted on the basis of another start point mark, and when the number of end marks is only one, the start point mark and the end point mark are paired. The document masking system according to claim 1. The document masking system according to claim 3, wherein the pairing processing unit performs error processing when there is no start point mark having only one end point mark to be paired. 5. The document masking system according to claim 1, wherein the masking process performed by the masking processing unit is a process of deleting contents included between the start point mark and the end point mark. 6. 5. The masking process performed by the masking processing unit is a process of displaying a masking pattern on a content included between the start point mark and the end point mark. 6. Document masking system as described in. The original document stored in the storage unit includes a header mark for specifying a header position or a footer mark for specifying the footer position of each page constituting the original document,
The said masking process part excludes the position of the header specified by the said header mark, and the position of the footer specified by the said footer mark from the object of the said masking process. The document masking system described. The said masking process part produces the range confirmation document for confirming the masking range which displayed the content contained between the said start point mark and the said end point mark in the aspect different from another part. The document masking system according to claim 7. An input unit for inputting the original document;
9. The document masking system according to claim 1, wherein the storage unit stores the original document created by input from the input unit. 10. Including a start point mark and an end point mark for specifying a start point and an end point of a masking range, and storing an original document to be masked in a storage unit;
For the original document stored in the storage unit, reading the start point mark and the end point mark included in the original document by a mark reading unit;
For the starting point mark and the end point mark read by the mark reading unit, the pairing processing unit performs pairing of the start point mark and the end point mark; and
About the original document, a process of masking the content included between the start point mark and the end point mark paired by the pairing processing unit by the masking processing unit,
Document masking method comprising: Storing an original document to be masked in a storage unit, including a start point mark and an end point mark for specifying a start point and an end point of a masking range;
For the original document stored in the storage unit, the mark reading unit reads the start point mark and the end point mark included in the original document;
For the starting point mark and the end point mark read by the mark reading unit, pairing the starting point mark and the end point mark by a pairing processing unit;
Masking the original document by the masking processing unit with respect to the content included between the start point mark and the end point mark paired by the pairing processing unit;
A document masking program to make a computer execute.

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