JP6631035B2 - Document masking system, document masking method and document masking program - Google Patents

Description

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

  In some cases, organizations such as companies and organizations do not want to disclose a part of the contents of the document. For example, in some cases, it may be preferable to partially hide the contents of a document according to the contents of a job such as a position or the department to which the user belongs. In such a case, a masking process may be performed so that a part that the user does not want to disclose cannot be seen (for example, Patent Document 1). In Patent Literature 1, masking is performed by replacing the display with a masking display (such as a black character).

JP-A-2004-145529

  In Patent Literature 1, position information indicating a position at which a masking process is performed is stored in a masking information management unit, which is a storage unit separate from the original document. For this reason, if the appearance of the document changes significantly due to the revision of the original document, it is necessary to set position information indicating the position where the masking process is performed again, which complicates the process.

  Further, in Patent Document 1, masking is performed only on characters, and an image such as a figure cannot be masked.

The present invention has been made in view of the above, and it is an object of the present invention to eliminate the need to re-set positional information indicating a masking processing position even if the appearance of a document changes due to revision of an original document, and It is an object of the present invention to provide a document masking system, a document masking method, and a document masking program that can also be used for masking images such as images.

In order to solve the above-described problem and achieve the object, a document masking system according to an embodiment 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 subjected to a masking process. 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. In the case of the start point mark and the end point mark, based on the start point mark included in the original document, in the case of a precondition that the end point is lower right, the lower right and end points are lower than the start point mark to be paired. In the case of the lower left prerequisite, the number of end marks at the lower left from the start mark to be paired is counted and the end mark is counted. When the number of is only one, the start point mark and the end point mark are paired. Then, if the precondition is that the end point is lower right with respect to the other start point marks, the pairing target is In the case of the precondition that the lower right corner of the start point mark and the lower end point of the start point mark are lower left than the start point mark to be paired, and the number of end point marks that are not paired with the start point mark, the end point is counted. A pairing processing unit that performs pairing between the start mark and the end mark when the number of marks is only one; and the start mark that is paired by the pairing processing unit with respect to the original document. And a masking processing unit that performs a masking process on the content included between the end mark and the end point mark. According to such a configuration, even if the appearance of the document is changed due to the revision of the original document, it is not necessary to set the position information indicating the position where the masking process is performed again, and the image such as a figure is to be masked. Can be. Further, by performing the pairing in this manner, the processing target is reduced one by one, and the pairing process can be performed for all the start point marks and the end point marks included in the original document.

  It is preferable that 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. By processing the entire original document as one coordinate system by linking all pages, it is possible to process a masking range across pages.

  It is preferable that the pairing processing unit performs an error process when there is no start mark having only one end mark to be paired. By performing the error processing, the user notified of the content of the error 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 contents included between the start point mark and the end point mark, it is possible to reliably make the contents of the masking range invisible.

  The masking process performed by the masking processing unit may be a process of displaying a masking pattern on a content included between the start point mark and the end point mark. By displaying the masking pattern on the display, the masking pattern 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 position of a header or a footer mark for specifying a position of a footer of each page constituting the original document, and the masking processing unit Preferably, the position of the header specified by the header mark and the position of the footer specified by the footer mark are excluded from the masking process. By excluding the header and the footer from the masking range, the user can check the information included in the header and the footer.

  It is preferable that 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 different form from other parts. . This makes it possible to easily confirm whether the masking range is appropriate.

  It is preferable that an input unit for inputting the original document is further provided, and the storage unit store the original document created by the input from the input unit. As a result, the original document input from the outside can be subjected to the masking process.

A document masking method according to an aspect of the present invention includes a step of storing a source document to be subjected to masking processing 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 step of reading the start point mark and the end point mark included in the original document by a mark reading unit, for the start point mark and the end point mark read by the mark reading unit, Based on the start mark included in the original document, if the precondition is that the end point is lower right, the pair is to be lower right from the start mark to be paired, and if the precondition is that the end point is lower left. Count the number of end marks at the lower left of the start mark to be ringed. If the number of end marks is only one, Perform pairing between the point mark and the end point mark, and then, based on another start point mark, in the case of a precondition that the end point is at the lower right, the lower right and the end point are lower than the start point mark to be paired. In the case of the lower left precondition, the number of end marks that are lower left than the start mark to be paired and that are not paired with the start mark are counted, and when the number of end marks is only one, Performing a pairing process between the start point mark and the end point mark by a pairing processing unit, and including the source document between the start point mark and the end point mark paired by the pairing processing unit. Masking the contents to be processed by a masking processing unit. According to this method, even if the appearance of the document is changed due to the revision of the original document, it is not necessary to set the position information indicating the position where the masking process is performed again, and the image such as a graphic can be also subjected to the masking. . Also, by reading the barcode added to the paper document by the barcode reading means, it is possible to read information contained in the barcode. Further, by performing the pairing in this manner, the processing target is reduced one by one, and the pairing process can be performed for all the start point marks and the end point marks included in the original document.

A document masking program according to an aspect of the present invention includes a starting point mark and an end point mark for specifying a starting point and an ending point of a masking range, and storing, in a storage unit, an original document to be subjected to masking processing; For the original document stored in, the step of reading the start point mark and the end point mark included in the original document by a mark reading unit, for the start point mark and the end point mark read by the mark reading unit, Based on the start mark included in the original document, if the precondition is that the end point is lower right, the pair is to be lower right from the start mark to be paired, and if the precondition is that the end point is lower left. Count the number of end marks at the lower left of the start mark to be ringed, and only one end mark In some cases, the start point mark and the end point mark are paired, and then, based on another start point mark, if the end point is a lower right condition, the start point mark is paired with the start point mark. In the case of the precondition that the bottom point and the end point are the lower left corner, the number of end point marks that are lower left than the start point mark to be paired and that are not paired with the start point mark are counted, and only one end point mark is provided. and performing the pairing processing section pairing with above start point mark and said end point mark if it is, for the original document, said by pairing processing unit and the start point mark pairing is performed with the end point mark And a step of performing a masking process by a masking processing unit on the contents included between them. By using this program, even if the appearance of the document changes due to the revision of the original document, it is not necessary to set the position information indicating the position of the masking process again, and it is possible to mask an image such as a figure. . Also, by reading the barcode added to the paper document by the barcode reading means, it is possible to read information contained in the barcode. Further, by performing the pairing in this manner, the processing target is reduced one by one, and the pairing process can be performed for all the start point marks and the end point marks included in the original document.

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

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 a 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 a process of acquiring the coordinate position of each mark. FIG. 10 is a diagram illustrating an example of all public documents after deleting each mark. FIG. 11 is a diagram illustrating an example of a partially public document that has been masked. FIG. 12 is a diagram illustrating an example of a range confirmation document for confirming a 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. The following embodiments are exemplifications, and the scope of the invention is not limited thereto. 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 drawings, the same or corresponding portions are denoted by the same reference characters, and 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 unit configuring the document masking system 10 is configured by, for example, a computer, and 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 processing software). Providing the input unit 1 enables the original document input from the outside to be subjected to the masking processing.

  The control unit 2 includes a CPU and the like, controls each unit of the present system, and executes a document masking program. When the control unit 2 executes the document masking program, a process of creating an all-open document, a partially-open document, and a range confirmation document based on the original document is performed. The control unit 2 includes a mark reading unit 21, a pairing processing unit 22, and a masking processing unit 23. These units are 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.

  The pairing processing unit 22 includes, for the mark read by the mark reading unit 21, a mark indicating a start point of the masking range (hereinafter, appropriately referred to as a start point mark) and a mark indicating an end point of the masking range (hereinafter, referred to as appropriate). (Referred to as an end point mark).

  The masking processing unit 23 performs a masking process based on the start point mark and the end point mark paired by the pairing processing unit 22.

  The display unit 3 displays the document that has been masked by the control unit 2. It is desirable that the document masking system 10 displays the document converted into a format that cannot be edited and falsified 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 required for the public document creation processing by the control unit 2. The storage unit 4 stores an original document to be subjected to a masking process. The storage unit 4 stores, for example, an original document externally input by the input unit 1.

  With the above configuration, the document masking system 10 of the present embodiment performs processing of inputting an original document and creating a public document. The document masking system 10 according to the present embodiment includes an all-open document in which the same contents as the original document are described, a partially-open document that has been masked based on a start point mark and an 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 the present embodiment specifies a range in which a masking process is performed based on a mark inserted in an original document. More specifically, in the present embodiment, a start point mark and an end point mark for specifying a range for performing the masking process are inserted in the body of the original document in advance. For the start point mark and the end point mark, predetermined keywords and symbols are used.

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

  In FIG. 2, an original document B1 is a document that is a processing target of a public document creation process. In the original document B1, a start point mark is inserted in advance at a start point position indicating an upper left coordinate and an end point mark is displayed at an end point position indicating a lower right coordinate in a masking range of a rectangle that is not desired to be shown to the partial disclosure target. Keep it. When excluding the header portion and the footer portion in the document from the masking range, a header lower end mark indicating the bottom of the header portion and a footer upper end mark indicating the top of the footer portion are set in the original document B1. Insert it on 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 determined in advance.

  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 a document by a copy and paste operation. If the document creation application software has a text box function, the mark inserted into the original document by the function may be used as a start mark, end mark, header mark or footer mark. A text box is an area for arranging characters and symbols at an arbitrary position in a document.

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

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

  In the mark deletion process of 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 has been deleted becomes the entire public document B2. All open documents B2 are documents created from the original document B1 for all disclosure targets. It is desirable that all the public documents B2 be documents from which the marks included in the original document B1 have been deleted.

  In the masking process in step S204, a partially public document B3 and a range confirmation document B4 are created. The partially disclosed document B3 is a document for the partial disclosure target who has performed a masking process 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 characters included in the original document B1 from which the mark has been deleted are left as they are, and the contents included in the masking range are displayed in a manner different from the other parts. 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 for designating the masking range has been correctly inserted into the original document B1. For example, a document in which the background color is displayed in a fluorescent color or the like or the masking range is displayed with a dashed line surrounding the contents included in the masking range. 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 designating the correct masking range are correctly inserted in the original document B1.

(Pairing process of start point mark and end point mark)
If there are N masking ranges (N is a natural number) in the document, N start point marks and N end point marks are both required. In the present embodiment, a pairing process between the start point mark and the end point mark is performed by individually assigning an additional number to the start point mark and the end point mark to distinguish them. 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 the present embodiment, if at least a start point mark and an end point mark are added, a pairing process between the start point mark and the end point mark is automatically performed, and the masking range can be specified. However, the following conditions are assumed. That is,
(1) The end point mark is located rightward 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 as a masking range.
(4) The plurality of masking ranges do not overlap each other.
It is.

  Under the above preconditions, the pairing processing of the start point mark and the end point mark in step S202 described above will be described with reference to FIG. FIG. 3 is a flowchart illustrating an example of a 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, starting point numbers are assigned to the starting point marks in order from right to left and from bottom to top with the lower right as a starting position.

  In step S302, a process of selecting one start point mark to be paired is performed. For example, among the start point marks that are not paired with the end point mark, a mark having a small start point number is selected as a pair.

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

  In step S304, as a result of the count in step S303, if the number of end marks to be paired is "1", the process proceeds to step S305, and the start mark and the end mark are paired (pairing processing). 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. As a result, the rectangular range specified by the end point mark to be paired and the start point mark to be paired is set as the masking range.

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

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

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

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

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

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

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

  In FIG. 4, in a process 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, a number is assigned to each starting point mark SP of the original document B1 from right to left and from bottom to top in this example. In this example, the start point marks are SP1, SP2, SP3, and SP4. In the following description, the start point marks SP1, SP2, SP3, and SP4 may be collectively referred to as start point marks SPN.

  In step P3, a straight line extending rightward and a straight line extending downward from the start point mark SPN are assumed. Then, on the basis of these straight lines, the end point marks existing in the rightward and downward directions of the start point marks SP1, SP2, SP3, and SP4, that is, the lower right direction are set as the processing targets.

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

  The counting is performed, for example, based on the coordinate position of each end point mark, searching from top to bottom, and counting end point marks while searching from left to right. As a result, in this example, there is one end mark in the lower right direction of the start mark SP1 (“E1”: the number of the end mark E is 1), and three end marks in the lower right direction of the start mark SP2 ( "E3": three end point marks E), two end points in the lower right direction of the start point mark SP3 ("E2": two end point marks E), and a lower right point 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, of the start point marks SPN, the end point mark whose 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 figure.

  In step P6, the number of end marks present in the lower right direction is counted for the start mark SPN that is not paired with any end mark. In the present example, the number of end point marks existing in the lower right direction is counted for each of the start point marks SP2, SP3, and SP4, except for the start point mark SP1 and the end point mark EP1 paired in the process P5. As a result, in the present example, there are two end marks in the lower right direction of the start mark SP2 (“E2”: the number of the end marks E is 2), and one end mark in the lower right direction of the start mark SP3 ( "E1": one end point mark E), and three end point marks in the lower right direction of the start point SP4 ("E3": three end point marks E).

  Proceeding to FIG. 6, in step P7, of the start point marks SP2, SP3, and SP4, the end point mark whose number is "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 figure.

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

  In step P9, of the start point marks SP2 and SP4, the end point mark whose number is "1" is paired with the end point mark. In this example, the start point mark SP2 and the end point mark EP2 are paired and indicated by a rectangle K2 in the figure.

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

  In the process P11, since the number of the end point marks of the start point mark SP4 is “1”, the start point mark SP4 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 figure.

  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 process, the number of end marks to be paired is counted by the pairing processing unit 22 with reference to the start mark included in the original document, and the number of end marks is only one. Then, the start point mark and the end point mark are paired, and then the number of end point marks to be paired is counted based on the other start point marks. When the number of end point marks is only one, Then, the start point mark and the end point mark are paired. By repeating this processing, the processing target is reduced one by one, and the pairing processing can be performed for all the start point marks and the end point marks included in the original document.

  By the way, when the number of start point marks and the number of end point marks included in the original document B1 do not match, it is desirable to perform error processing. In this case, in the process of the pairing process, for example, there is no start point mark in which the number of end point marks existing in the lower right direction is “1”, and pairing cannot be performed. In addition, for example, even when the masking ranges overlap each other, there is no start mark having the number of end marks “1” existing in the lower right direction, and pairing cannot be performed. Therefore, it is desirable to perform error processing.

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

  The error processing includes, for example, a method of displaying the content of the error on a monitor screen to notify the user, and outputting the content of the error as a voice to notify the user. By performing such error processing, the user notified of the content of the error can recognize the error and reset the start point mark and the end point mark.

(Example of a document that has been masked)
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 a process of acquiring coordinate positions of a start point mark, an end point mark, a header mark, and a footer mark. As shown in FIG. 9, all pages constituting the original document B1 are connected with their left ends aligned in this example, and are arranged in one coordinate system of the X axis and the Y axis. In this state, the process proceeds for the masking range. By processing all pages in a concatenated manner, a masking range across the pages can be processed. In addition, by processing all pages in a concatenated manner, the header and footer portions can be excluded from the masking range. As a result, the user can check the information included in the header and the footer.

  FIG. 10 is a diagram illustrating an example of all the published documents B2 after the start point mark, end point mark, header mark, and footer mark have been deleted. As shown in FIG. 10, the start point mark, end point mark, header mark and footer mark have been deleted. It is meaningless for the user of the document, and if the mark is present, the document is difficult to see. Therefore, the mark is deleted. Thus, it is possible to prevent the document from being difficult to see.

  FIG. 11 is a diagram illustrating an example of the partially disclosed document B3 that has been masked. As shown in FIG. 11, the partially open document B3 is in a state where the masking process is performed on the masking range MS specified based on the start point mark and the end point mark. As a result, of the content described in the original document B1, the portion corresponding to the masking range MS is in a state where the content is not visually recognized. In this example, the portion from the “3. Grounds” to the bar graph of “3-2. In-house experimental data” displayed in the original document B1 shown in FIG. 8 becomes the masking range MS and is not visible. I have.

  FIG. 12 is a diagram illustrating an example of the range confirmation document B4 for confirming the masking range MS. In the range confirmation document B4, a portion corresponding to the masking range MS of the partial disclosure document B3 is displayed in a manner different from other portions, as indicated by a broken line portion in FIG. By displaying the portion corresponding to the masking range MS in a manner different from other portions, it is possible to easily confirm whether the masking range MS is appropriate.

  In FIG. 12, the broken line portion is, for example, a display in which the background is filled with a fluorescent color. Regarding 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 present invention is not limited to the case where the background is painted out, and the color of the character of the portion corresponding to the masking range MS may be displayed in a different mode from the other portions. By displaying the portion corresponding to the masking range MS in a manner different from the other portions, the masking range MS can be easily confirmed.

(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 manner, error processing is performed according to the flowchart shown in FIG. That is, as a result of the count 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 start point mark to be paired (Yes in step S307), even if the start point to be paired is reselected (step S308), the number of end point marks to be paired still becomes "2 or more". (Steps S303, S304, and S307), there is no start point mark to be paired (No in Step S307), and the process advances to Step S309 to perform error processing.

  In order for the error processing not to be performed, it is necessary to set a start point mark and an 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 document includes start point marks SP11, SP12, and SP13 and end point marks EP11, EP12, and EP13. 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. , Are each set. Therefore, in the document shown in FIG. 13B, the masking ranges MS11, MS12, MS2 do not overlap each other.

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

  As a method of the masking processing, a method of deleting data in the masking range (deleting the content between the start point mark and the end point mark), covering the masking pattern with the masking pattern without deleting the data and displaying the masking range. Any of the methods of making the display screen invisible so as not to be visually recognized may be used. In the former case, for example, it can be realized by replacing with a blank (space symbol) of the same number of characters, and the contents of the masking range can be reliably made invisible. In the latter case, the masking pattern can be realized by placing the masking pattern on the upper layer of the masking range and displaying the masking pattern, so that the masking pattern cannot be visually recognized on the display screen of the display unit.

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

  In a partially published document, the mark itself may be included in the masking range so that it is not visible, or after the mark is deleted, 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 above-described document masking system includes a start point mark and an end point mark for specifying a start point and an end point of a masking range, and a step of storing an original document to be masked in a storage unit, Reading the start mark and the end mark included in the original document by the mark reading unit with respect to the original document stored in the storage unit; and reading the start mark and the end point read by the mark reading unit. With respect to the mark, based on the start mark included in the original document, the premise is that the end point is lower right, the premise is that the start mark to be paired is lower right, and the end point is lower left. Count the number of end marks at the lower left of the start mark to be paired, When there is only one, the start point mark and the end point mark are paired. Then, if the precondition is that the end point is lower right with respect to the other start point marks, the pairing is performed. If the precondition is that the lower right corner of the start mark and the lower end point is the lower left corner, the number of end point marks that are lower left than the start point mark to be paired and that are not paired with the start point mark are counted. A step of pairing the start mark and the end mark by the pairing processing unit when the number is only one; and a step of performing the pairing of the original document by the pairing processing unit on the original document. And a step of masking the content between the end point mark and the end point mark by a masking processing unit. According to this method, even if the appearance of the document is changed due to the revision of the original document, it is not necessary to set the position information indicating the position where the masking process is performed again, and the image such as a graphic can be also subjected to the masking. . Further, by performing the pairing in this manner, the processing target is reduced one by one, and the pairing process can be performed for all the start point marks and the end point marks included in the original document.

(Document Masking Program)
A document masking program used in the above-described document masking system includes a start point mark and an end point mark for specifying a start point and an end point of a masking range, and a step of storing an original document to be masked in a storage unit, Reading, by a mark reading unit, the start mark and the end mark included in the original document stored in the storage unit; and the start mark and the end point read by the mark reading unit. With respect to the mark, based on the start mark included in the original document, the premise is that the end point is lower right, the premise is that the start mark to be paired is lower right, and the end point is lower left. Count the number of end marks at the lower left of the start mark to be paired. When the number of the end point mark is only one, the start point mark and the end point mark are paired. Then, based on the other start point marks, if the end point is a precondition that the end point is at the lower right, a pair is formed. In the case of the precondition that the lower right of the start mark to be ringed and the lower end of the start mark are lower left than the start mark to be paired, the number of end marks not paired with the start mark is counted. Performing pairing between the start mark and the end mark by the pairing processing unit when the number of the end mark is only one, and performing pairing by the pairing processing unit on the original document. Masking the content included between the start point mark and the end point mark by the masking processing unit. It is. By using this program, even if the appearance of the document changes due to the revision of the original document, it is not necessary to set the position information indicating the position of the masking process again, and it is possible to mask an image such as a figure. . Further, by performing the pairing in this manner, the processing target is reduced one by one, and the pairing process can be performed for all the start point marks and the end point marks included in the original document.

(Summary)
The document masking system 10 inserts a start point mark and an end point mark in the text of the original document, so that even if the text is added or revised, the masking process of the specified range can be continuously performed. In other words, 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 even if the size of the masking range of the text changes, the position of the mark is changed. Since it follows, the masking range can be appropriately maintained.

  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 paints the masking range with an arbitrary color, and not only characters and symbols but also figures and images. Masking processing can be performed.

  According to this system, since the mark indicating the start point and the end point of the range to be masked is included in the text of the original document, even if the text of the original document is added or revised, the masking process of the specified range is performed. Can be continuously performed.

  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 sentence or figure included in the masking range changes, Even if the contents of the document are frequently modified (addition, change, or deletion of characters or symbols), the position of the mark follows before and after the modification, and an appropriate masking range can be maintained.

  By designating the masking range with a rectangle based on the start point and the end point, it is possible to display the masking range filled 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, by writing marks at the lower end of the header and the upper end of the footer, the header and footer of the document can be excluded from the masking process (excluded from the masking range).

  In other words, 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, so that the header portion and the footer are provided. Can be excluded from the masking process. The header and the footer may include information such as a page number and a document name, and such information is displayed without a masking process. 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 processing so that the mark is not displayed on the partially published document or the whole published document. Further, it is preferable that a range confirmation document in which the masking range is displayed in a fluorescent color or the like can be displayed in such a manner that characters in the masking range can be visually recognized. The display color of the masking range is not limited to the fluorescent color as long as the masking range can be easily checked. That is, by displaying the masking range in a color other than black, such as a fluorescent color, a range confirmation document displayed so that characters in the masking range can be viewed may be displayed.

(Modification)
With respect to the document masking system according to the present embodiment, the following modifications are conceivable.

  A predetermined start point mark, end point mark, header mark, and footer mark may be written by hand in the printed original document, and the mark may be read by an image scanner, and then each mark may be recognized. 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 a predetermined place in advance is prepared, and a sentence or figure is prepared in the fixed form. , Etc., to create the original document B1.

  The present system and the document management system may be combined. For example, the original document may be stored in a document management system, and when there is a request to browse the document, a document that has been subjected to masking processing by the present system may be created and presented to the user. . With this configuration, it is not necessary to store a 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 from each other and connected to each other via a communication network. Also, a plurality of input units and display units may be provided for one control unit and storage unit. That is, the control unit and the storage unit may be provided in the server, the input unit and the display unit may be provided in the personal computer, and both may be connected via the communication network.

  Although an embodiment of the present invention has been described, this embodiment has been presented by way of example only, and is not intended to limit the scope of the invention. This embodiment can be implemented in other various 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 and gist of the invention, and are also included in the invention described in the claims and equivalents thereof.

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

Claims (10)

A storage unit that includes a start point mark and an end point mark for specifying a start point and an end point of a masking range, and stores an original document to be subjected to masking processing;
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;
For the start point mark and the end point mark read by the mark reading unit, the start point to be paired if the end point is a lower right corner with respect to the start point mark included in the original document. If the prerequisite is that the lower right corner of the mark and the end point is lower left, the number of end marks lower left than the start mark to be paired is counted. If the number of the end mark is only one, the start point is counted. Pairing the mark and the end point mark, and then, based on another start point mark, in the case of a precondition that the end point is lower right, the lower right and the end point are lower left than the start point mark to be paired. In the case of the precondition, the number of end marks that are lower left from the start mark to be paired and that are not paired with the start mark are counted, and the number of end marks is Pairing processing unit for pairing with above start point mark and said end point mark if only One,
For the original document, a masking processing unit that performs a masking process on the content included between the start point mark and the end point mark paired by the pairing processing unit,
Document masking system having 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 entirety of the original document stored in the storage unit as one coordinate system. 3. The pairing processing unit performs error processing when there is no start mark having only one end mark to be paired.
The document masking system according to claim 1 or 2 . 4. 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. 5. The masking process masking unit performs, the above content included between the start point mark and said end point mark, any one of claims 1 to 3 is a process of displaying put the masking pattern Document masking system described in 1. The original document stored in the storage unit, of each page constituting the original document, including a header mark for specifying the position of the header or footer mark for specifying the position of the footer,
The masking processing unit according to any one of claims 1 to 5 , wherein the position of the header specified by the header mark and the position of the footer specified by the footer mark are excluded from the masking processing. The described document masking system. 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 a different form from another part. The document masking system according to any one of claims 1 to 6 . An input unit for inputting the original document,
The document masking system according to any one of claims 1 to 7 , wherein the storage unit stores the original document created by the input by the input unit. A step of storing a source document to be subjected to masking processing 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, a step of reading the start point mark and the end point mark included in the original document by a mark reading unit,
For the start point mark and the end point mark read by the mark reading unit, the start point to be paired if the end point is a lower right corner with respect to the start point mark included in the original document. If the prerequisite is that the lower right corner of the mark and the end point is lower left, the number of end marks lower left than the start mark to be paired is counted. If the number of the end mark is only one, the start point is counted. Pairing the mark and the end point mark, and then, based on another start point mark, in the case of a precondition that the end point is lower right, the lower right and the end point are lower left than the start point mark to be paired. In the case of the precondition, the number of end marks that are lower left from the start mark to be paired and that are not paired with the start mark are counted, and the number of end marks is And performing the pairing processing section pairing with above start point mark and said end point mark if only One,
For the original document, a step of performing a masking process by a masking processing unit on contents included between the start point mark and the end point mark paired by the pairing processing unit,
A document masking method having: 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 subjected to masking processing 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,
Regarding the start point mark and the end point mark read by the mark reading unit, based on the start point mark included in the original document, the start point to be paired when the end point is a lower right condition. In the case of the precondition that the lower right and the end points are lower left than the mark, the number of the end point marks lower left than the start point mark to be paired is counted. Pairing the mark and the end point mark, and then, based on another start point mark, if the precondition that the end point is lower right is lower right than the start point mark to be paired, and the end point is lower left In the case of the precondition, the number of end marks that are lower left from the start mark to be paired and that are not paired with the start mark are counted, and the number of end marks is And performing the pairing processing section pairing with above start point mark and said end point mark if only One,
For the original document, performing a masking process by a masking processing unit on the content included between the start point mark and the end point mark paired by the pairing processing unit,
A document masking program for causing a computer to execute.

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