JP4150039B2 - Image processing apparatus, image forming apparatus, image processing program, and image processing method - Google Patents

Description

  The present invention relates to an image processing apparatus, an image forming apparatus, an image processing program, and an image processing method.

  Recent image processing apparatuses and image forming apparatuses have various functions. For example, image processing apparatuses include multi-function machines that have functions as copiers, printers, facsimile apparatuses, and scanner apparatuses. As a result, the user can perform various operations using the manuscript such as copying the manuscript or converting it into electronic data with a single image processing apparatus.

  However, according to such an image processing apparatus, a document including personal information such as a personal name is easily copied or converted into electronic data. Whether or not to copy a manuscript including personal information largely depends on the consciousness of each person handling such manuscript.

Therefore, Patent Document 1 discloses a color copying machine that prohibits output of a predetermined expression such as personal information included in an original when the original is copied. The color copying machine of Patent Document 1 includes a character recognition unit, a character data storage unit, and a character discrimination unit. The character recognition unit extracts a character portion from the image data read by the color scanner, and determines and recognizes what kind of character the extracted character portion is. The character data storage unit stores a plurality of specific character strings and their positional relationships in advance. The character discriminating unit discriminates whether or not the character recognized by the character recognizing unit and the positional relationship thereof match the character stored in the character data storage unit and the positional relationship thereof. Prohibit data output. In such a color copying machine, the output that is consistent with the stored character string is uniformly prohibited.
JP-A-8-194212

  In addition to Patent Document 1, from the viewpoint of protecting personal information and the like, when attempting to copy a manuscript containing a predetermined expression, the expression is replaced with another character string and output in a face-down state. Processing devices are known.

However, image data converted into other character string, in order to personal information or the like is subjected, can occur may not be able to understand the necessary information in the document.

  An object of the present invention is to obtain image data that has been processed so as to be able to understand protected personal information and the like for a specific user while protecting personal information and the like included in the image data.

The image processing apparatus according to claim 1 is an apparatus for performing predetermined image processing on image data including a character string, and includes a storage unit, a search unit, a replacement unit, a password issuing unit, and a detection unit. Means. The storage means stores a predetermined first character string. The search means searches for the same character string as the first character string from the character strings included in the image data. The replacement means replaces the character string in the image data hit as a result of the search by the search means with a second character string different from the first character string. The password issuing means inputs from the outside when the second character string replaced by the replacing means is further replaced with a third character string that is closer to or the same as the first character string than the second character string. At least one password to be issued. The detecting means detects a password input from the outside. The storage means further stores replacement information indicating how to replace the second character string in association with the password. In the replacement information, how close the replaced second character string is to the first character string before replacement is determined according to the length of the password. The replacement means further replaces the second character string with the third character string based on the replacement information corresponding to the password detected by the detection means.

Hereinafter, it is assumed that only a specific user has acquired the password, and the predetermined character string is personal information such as a personal name, for example. The image processing apparatus replaces a predetermined first character string included in image data with a second character string, and issues a password. Then, according to the password input by the user, the image processing apparatus further replaces the character string once substituted with the second character string so as to be close to the original first character string or similarly. Thus, according to this image processing apparatus, only a specific user who has acquired a password can acquire image data in which a predetermined character string such as personal information is close to or the same as the original image data. Therefore, here, it is possible to obtain image data in which personal information and the like are restored as necessary while preventing leakage of confidential information such as personal information.

Further, in this image processing apparatus, when a password is input, it is further replaced with a third character string in accordance with the corresponding replacement information. In other words, in accordance with the input password, the image processing apparatus determines and replaces the first character string that has been replaced with the second character string once to the original character string. For example, the image processing apparatus corresponds to each of the passwords “A” and “B”, the replacement information “returns a part of each character string once replaced” to “the original character string”, "Return to character string" is stored. In this case, the user who has input the password “A” obtains image data in a state where only a part of each character string is disclosed in the original image data and the rest is converted into another character string. On the other hand, the user who has input the password “B” can obtain image data in a state where all the character strings included in the original image data are returned to the original character strings. As described above, the user of the image processing apparatus can acquire image data in which a predetermined character string such as personal information is converted into a desired state by selecting and inputting a password. That is, user convenience is improved.

  Further, in this image processing apparatus, for example, the longer the input password is, the more the first character string once replaced with the second character string is further replaced with the third character string closer to the character string before replacement. Conversely, the shorter the password that is input, the image processing apparatus further replaces the third character string that is not close to the character string before replacement. In this way, if the replacement information is determined so as to be replaced closer to the original character string as the password is longer, the password is accidentally verified by a user who has not acquired the password, and a predetermined character string such as personal information Is less likely to be known. Therefore, leakage of personal information can be further prevented.

  In the present invention, the characters constituting the character string include not only characters but also numbers and symbols, and the number of characters constituting the character string may be plural or only one. Further, the password issued by the password issuing means may be only one or a plurality of combinations. Further, the image data may be read by a document reading unit, which will be described later, or may be stored in a storage unit. Further, the image processing apparatus may have a scanner function such as a copying machine, a facsimile apparatus, and a scanner apparatus, and may have a scanner function as an information processing apparatus such as a personal computer (PC) or an office computer. You may not have.

According to a second aspect of the present invention, there is provided the image processing apparatus according to the first aspect , further comprising original reading means for reading an original including character information and acquiring image data including a character string.

  In this apparatus, for example, personal information included in a manuscript is replaced with another character string, or when personal information or the like is once replaced with another character string and the output paper is read. Other strings may be restored to their original contents as needed.

  In the present invention, the term “output” includes display on a predetermined display unit and image formation on a transfer material by an image forming unit described later.

The image processing apparatus according to claim 3 is an apparatus for performing predetermined image processing on image data including a character string, and includes a storage unit, a search unit, a replacement unit, a password issuing unit, and a detection unit. Means. The storage means stores a predetermined first character string. The search means searches for the same character string as the first character string from the character strings included in the image data. The replacement means replaces the character string in the image data hit as a result of the search by the search means with a second character string different from the first character string. The password issuing means inputs from the outside when the second character string replaced by the replacing means is further replaced with a third character string that is closer to or the same as the first character string than the second character string. At least one password to be issued. The detecting means detects a password input from the outside. The storage means further stores replacement information indicating how to replace the second character string in association with the password. In the replacement information, it is determined how close the replaced second character string is to the state of the first character string before replacement according to the number of passwords. The replacement means further replaces the second character string with the third character string based on the replacement information corresponding to the password detected by the detection means.

The image processing apparatus replaces a predetermined first character string included in image data with a second character string, and issues a password. Then, the image processing apparatus further replaces the character string that has been once replaced with the second character string so as to be close to the original first character string or similarly, according to the replacement information corresponding to the password input by the user. . Therefore, it is possible to obtain image data in which personal information and the like are restored as necessary while preventing leakage of secret information such as personal information. The user of the image processing apparatus can acquire image data in which a predetermined character string such as personal information is converted into a desired state by selecting and inputting a password.

In addition, for example, when one password is input , the image processing apparatus further replaces the first character string once replaced with the second character string to such an extent that the character string before replacement cannot be estimated. When three passwords are input, the image processing apparatus further replaces the first character string once replaced with the second character string so as to be closer to the character string before the replacement. In this way, if the replacement information is determined so as to be replaced closer to the original character string as the number of passwords increases, the password is accidentally verified by a user who has not obtained a plurality of passwords, The risk of knowing a predetermined character string is reduced. Therefore, leakage of personal information can be further prevented.

According to a fourth aspect of the present invention, there is provided the image processing apparatus according to the third aspect , further comprising original reading means for reading an original including character information and obtaining image data including a character string.

  In this apparatus, for example, personal information included in a manuscript is replaced with another character string, or when personal information or the like is once replaced with another character string and the output paper is read. Other strings may be restored to their original contents as needed.

  In the present invention, the term “output” includes display on a predetermined display unit and image formation on a transfer material by an image forming unit described later.

An image forming apparatus according to a fifth aspect includes the image processing apparatus according to any one of the first to fourth aspects and an image forming unit. The image forming unit can form an image on the transfer material based on the image data replaced by the replacement unit of the image processing apparatus.

  In this apparatus, since the image data subjected to the above replacement processing can be output on a transfer material such as paper, for example, in the image data in which personal information or the like is once replaced with another character string, or in this image data Further, if necessary, image data that is close to the original content before replacement or returned to the same content can be obtained as a printed matter from which these are output.

An image processing program according to claim 6 is a program executed in a computer of an image processing apparatus for performing predetermined processing on image data, wherein the computer includes search means, replacement means, and password issuing means. And function as detection means. The search means searches for the same character string as the predetermined first character string stored in the storage means from the character strings included in the image data. The replacement means replaces the character string in the image data hit as a result of the search by the search means with a second character string different from the first character string. The password issuing means inputs from the outside when the second character string replaced by the replacing means is further replaced with a third character string that is closer to or the same as the first character string than the second character string. At least one password to be issued. The detecting means detects a password input from the outside. In addition, when the computer functions as a replacement unit, a state in which the second character string is close to the first character string before the replacement based on any one of the length and the number of passwords detected by the detection unit It is determined whether or not to replace, and the second character string is further replaced with the third character string in the determined state .

When this program is a computer therefore execution of the image processing apparatus, for example, personal information or the like included in the image data, once it is replaced by another character string, also image data is substituted once to another string Depending on the length and number of passwords, the original content before replacement or the same content is restored. Therefore, here, it is possible to obtain image data in which personal information or the like is restored as necessary while preventing leakage of secret information.

An image processing method according to a seventh aspect is a method for performing predetermined processing on image data, and includes a search step, a replacement step, a password issue step, and a detection step. In the search step, a character string identical to the predetermined first character string stored in the storage unit is searched from the character strings included in the image data. In the replacement step, the character string in the image data hit as a result of the search in the search step is replaced with a second character string different from the first character string. In the password issuing step, the second character string replaced in the replacement step is input from the outside when the second character string is further replaced with a third character string that is closer to the first character string than the second character string or the same as the first character string. At least one password to be issued. In the detection step, a password input from the outside is detected. In the replacement step, based on any one of the length and the number of passwords detected in the detection step, how close the second character string is to the state of the first character string before replacement is determined. Then, the second character string is further replaced with the third character string in the determined state .

According to this method, for example, personal information included in the image data is once replaced with another character string, and the image data once replaced with another character string is not replaced according to the length or number of passwords. Is restored to the same or the same content as the original content. Therefore, here, it is possible to obtain image data in which personal information or the like is restored as necessary while preventing leakage of secret information.

According to the present invention, it is possible to obtain image data processed so as to be able to understand protected personal information and the like for a specific user while protecting personal information and the like included in the image data. Increases nature. Furthermore, the possibility that a user who has not acquired a password accidentally collates the password and knows a predetermined character string such as personal information is reduced. Therefore, leakage of personal information can be further prevented.

<First Embodiment>
(1) Configuration FIG. 1 is a configuration diagram of a multifunction machine 1 according to the present embodiment. The multifunction machine 1 also has functions as a copying machine, a printer, a facsimile machine, and a scanner device. The multifunction machine 1 includes an image processing unit 10 including a document reading unit 2, a storage unit 3, a detection unit 4, a process execution unit 5, and the like, and an image forming unit 8.

(1-1) Document Reading Unit The document reading unit 2 obtains image data by reading a document placed on a document placing table (not shown), and if the document includes character information, the image data includes a character string. Is acquired.

  The document reading unit 2 outputs the acquired image data to the search unit 6 in the processing execution unit 5 described later.

(1-2) Storage Unit The storage unit 3 stores a keyword list 3a (corresponding to a predetermined first character string) including a plurality of keywords registered in advance and a replacement information table 3b.

  FIG. 2 is a conceptual diagram of the keyword list 3 a stored in the storage unit 3. The keyword list 3a includes, for example, personal information such as personal names, information such as other proper nouns, and the like as keywords. The keyword list 3a is used when the search unit 6 of the processing execution unit 5 described later searches whether there is a character string that matches any of these in the image data acquired by the document reading unit 2.

  The storage unit 3 may store the keyword list 3a in advance, or may further store keywords newly input by the user.

  FIG. 3 is a diagram for explaining the replacement information table 3 b stored in the storage unit 3. The replacement information table 3b in FIG. 3 stores a password, a level, and replacement information as one record. The password is input when instructing replacement of a character string included in the image data acquired by the document reading unit 2 with another character string that matches one of the keyword lists 3a. The replacement information is information indicating how to replace a character string that matches any one of the keyword list 3a among the character strings included in the image data. The level indicates a numerical value indicating the degree of replacement of a character string that matches one of the keyword list 3a among character strings included in the image data.

  In the replacement information table 3b, for example, the password “1111”, the level “1”, and the replacement information “replace the hit character string with“ A, B, C... It has been.

  In the replacement information table 3b, the content of the replacement information is determined so that the character string included in the image data output as the password becomes longer approaches the character string in the original image data.

  In the replacement information table 3b in FIG. 3, the level is stored in association with the password, but at least the password and the replacement information may be stored in association with each other.

  The storage unit 3 has a hard disk drive (HDD) for storing image data. The HDD stores image data read and acquired by the document reading unit 2.

  The multifunction machine 1 includes a control unit configured by a microcomputer including a CPU, and the storage unit 3 has a control program for controlling input / output units such as the document reading unit 2 and the image forming unit 8. In addition, an image processing program for causing the control unit to function as the detection unit 4, the processing execution unit 5, and the password issuing unit 9 is stored.

(1-3) Detection Unit The detection unit 4 is connected to an operation panel (not shown) provided in the multifunction machine 1 and detects a password input through the operation panel. The operation panel is provided in the multifunction device 1. When detecting the password, the detection unit 4 outputs the password to the replacement unit 7 in the process execution unit 5.

(1-4) Process Execution Unit The process execution unit 5 performs control for performing predetermined processing based on the password input by the multifunction machine 1. The process execution unit 5 includes a search unit 6 and a replacement unit 7.

  The search unit 6 searches the character strings included in the image data acquired by the document reading unit 2 for the same character strings as the keywords in the keyword list 3 a stored in the storage unit 3. The search unit 6 outputs the searched image data to the replacement unit 7. The image data output to the search unit 6 includes not only the image data acquired by the document reading unit 2 but also the image data created by the image processing unit 10 itself and stored in the storage unit 3.

  The replacement unit 7 replaces the character string in the image data hit as a result of the search by the search unit 6 with another character based on the replacement information table 3b in the storage unit 3 and the acquired password. Replace with a column. Then, the replacement unit 7 outputs the replaced image data to the image forming unit 8.

  Below, operation | movement of the search part 6 and the replacement part 7 in this embodiment is demonstrated easily. It is assumed that “Tanaka” and “Fukuda” are included in the keyword list 3a. When searching for whether or not the keywords “Tanaka” and “Fukuda” are included in the character string in the image data acquired by the document reading unit 2, the searching unit 6 outputs the searched image data to the replacing unit 7. . The replacement unit 7 replaces all character strings hit as a result of the search in the image data after the search with a symbol “◯” and performs printing in the image forming unit 8. When the replacement unit 7 obtains the password “1111” by the detection unit 4 when the output sheet is read, the replacement unit 7 corresponds to the password “1111” in the replacement information table 3b stored in the storage unit 3. Read replacement information “Replace hit character string with 'A, B, C...' From top”. Then, the replacement unit 7 sequentially replaces “A” and “B” with the replaced “◯” in place of the character strings “Tanaka” and “Fukuda” in the image data searched by the search unit 6.

(1-5) Password Issuing Unit The password issuing unit 9 issues a password and displays it on the screen of the operation panel when printing is performed based on the image data subjected to the replacement process by the replacement unit 7. . The password is issued only to a specific user registered in advance, and whether or not the user is a specific user is displayed on the operation panel when the user instructs reading by the document reading unit 2, for example. Judgment is made by selecting the corresponding user name from the user list.

  Also, the password issuing unit 9 can issue passwords with different weights even among specific users. Here, the password issuing unit 9 is registered as a person who can perform a replacement process for returning personal information once replaced to the original state. For users who are registered as persons who should be given the longest password and who should perform the replacement process with the smallest degree of returning personal information that has been replaced once to the original personal information, etc. In contrast, the shortest password is assigned.

(1-6) Image Forming Unit The image forming unit 8 performs printing on a sheet based on the image data after being replaced by the replacing unit 7 in the processing execution unit 5, and is not shown. , And a main charging device, an exposure device, a developing device, a transfer device, a craning device, and the like disposed around it.

  The multifunction device 1 further includes a paper feed cassette that stores paper and a paper feed unit that transports the paper in the paper feed cassette one by one.

(2) Operation FIG. 4 is an operation flowchart of the multifunction machine 1. FIG. 5 is an example of a screen displayed on the operation panel when the original reading unit 2 instructs to read the original on which the image data with the predetermined character string replaced is output. 6 to 10 are examples of image data in each operation of FIG. Hereinafter, the operation of the multifunction machine 1 will be described with reference to FIGS. First, it is assumed that a document to be copied is placed on a document placement table (not shown) of the multifunction machine 1.

  Step S1: The document reading unit 2 reads the document placed on the document placing table, acquires the image data shown in FIG.

  Step S2: When the search unit 6 acquires the image data from the document reading unit 2, the search unit 6 reads the keyword list 3a from the storage unit 3. The search unit 6 searches for a character string that matches any one of the keyword list 3a from the character string in the image data.

  Step S3: If no character string matching any of the keyword list 3a is found in the image data in step S2, the search unit 6 outputs the image data to the image forming unit 8. The image forming unit 8 outputs the same image data as the original.

  Step S4: When a character string that matches any of the keyword lists 3a is hit from the image data in step S2, the search unit 6 outputs the searched image data to the replacement unit 7. The replacement unit 7 collectively replaces character strings that match any one of the keyword lists 3a with “◯”. FIG. 7 shows the image data after replacement at this time.

  Step S5: The image forming unit 8 outputs the image data replaced with the character string “◯” that matches one of the keyword lists 3a to a sheet, and displays a password on the operation panel.

  Step S6: When reading of the paper output in step S5 is instructed, the screen shown in FIG. 5 is displayed on the operation panel, and when the password displayed in step S5 is input, reading by the original reading unit 2 is performed.

  Step S7: The detection unit 4 monitors whether or not a password is input on the screen displayed on the operation panel during a predetermined time after the document reading unit 2 acquires the image data.

  Step S8: If the detection unit 4 does not detect the password for a predetermined time, the image forming unit 8 performs printing based on the image data replaced by the replacement unit 7. The image data at this time is shown in FIG.

  Steps S <b> 9 to 11: When the detection unit 4 detects the password “1111” during a predetermined time, the replacement unit 7 corresponds to the password “1111” in the replacement information table 3 b stored in the storage unit 3. Further replacement is performed based on the replacement information of level “1”. The image forming unit 8 outputs this. The output data at this time is shown in FIG.

  Steps S12 to S14: When the detection unit 4 detects the password “AA1111” during a predetermined time, the replacement unit 7 corresponds to the password “AA1111” in the replacement information table 3b stored in the storage unit 3. Further replacement is performed based on the replacement information of level “2”. The image forming unit 8 outputs this. The output data at this time is shown in FIG.

  Steps S15 to 17: When the detection unit 4 detects the password “** AA1111” during a predetermined time, the replacement unit 7 sets the password “** AA1111” in the replacement information table 3b stored in the storage unit 3. Further replacement is performed based on the replacement information of level “3” corresponding to “”. The image forming unit 8 outputs this. The output data at this time is shown in FIG.

  Steps S18 to S20: If the detection unit 4 detects the password “## ** AA1111” during a predetermined time, the replacement unit 7 uses the password “#” in the replacement information table 3b stored in the storage unit 3. Further replacement is performed based on the replacement information of level “4” corresponding to ** AA1111 ”. The image forming unit 8 outputs this. The output data at this time is shown in FIG.

  Step S21: When the detection unit 4 cannot detect the password, a notification of “no corresponding password” is output to the operation panel.

  Step S22: When it is desired to re-input when the password input at step S21 is not verified, or to output the paper subjected to the same replacement process after output at steps S11, 14, 17, and 20. If the password is further detected between the detection unit 4 detecting the password and the elapse of a predetermined time, the operations after step S9 are repeated. If not detected, the multifunction device 1 ends the series of operations.

(3) Effect In this multifunction device 1, a password is given only to a specific user, and personal information once converted to another character string according to the input password is close to the original character string. It is further converted into a character string or the same character string as the original character string and printed. Therefore, while protecting personal information included in a document, it is possible to output to a specific user so that the protected personal information can be understood, and the convenience of the user who uses this multifunction device is enhanced. Further, since the replacement is performed according to the length of the password, there is less possibility that a user who has not acquired the password will accidentally collate the password and know a predetermined character string such as personal information. Therefore, leakage of personal information can be further prevented.
<Other embodiments>
(A)
In the first embodiment, the degree of replacement of the character string that matches the keyword among the character strings in the image data is determined according to the length of the password, but is determined according to the number of passwords. Also good. 11 and 12 show replacement information tables 103a and 103b when the degree of replacement is determined according to the number of passwords. The replacement information tables 103a and 103b store one or more passwords and replacement information as one record. The one or more passwords may be completely different passwords as shown in the replacement information table 103a in FIG. 11, or may have partially common passwords as shown in the replacement information table 103b in FIG.

  Users who have not acquired multiple passwords if replacement information is determined so that the same character string as the keyword in the image data approaches the document step by step as the number of passwords increases Therefore, there is little possibility that the password is collated accidentally and a predetermined character string such as personal information is known. Therefore, leakage of personal information can be further prevented.

(B)
In the first embodiment, after the document reading unit 2 reads the document, the replacement unit 8 collectively replaces character strings that match any of the keyword lists 3a in the image data with “◯”, but this operation is omitted. May be.

  The operation in this case will be described with reference to FIGS. FIG. 13 is an operation flowchart of the multifunction peripheral according to Embodiment B. FIG. 14 is a diagram showing image data in each operation of FIG. FIG. 15 shows a replacement information table 203 stored in the MFP.

  The multifunction peripheral according to the present embodiment waits for a predetermined time when the original is read (S101). If the password is detected during the predetermined time, the multifunction peripheral replaces the character string identical to the keyword among the character strings in the image data based on the password and replacement information table 203 (S102). For example, when the password “1111” is detected, the multifunction peripheral replaces the password as shown in the image data example 212b in FIG. 14 (S104 to S106).

  If the password is not detected within a predetermined period of time, the multi-function device converts the character string in the image data that is the same as the keyword into 212f in FIG. 14 based on the replacement information table 103b. A character string that can be output as shown, that is, a completely different character string that cannot be used to guess a keyword is output (S103).

  If the password “## ** AA1111” is detected, the multi-function peripheral outputs the image data without replacing it, as indicated by 212e in FIG. 12 (S113 to S114). That is, in this embodiment, the image data is output as it is without being replaced only when the password is the longest, and the replaced image data is output in other cases.

  Since other operations are the same as those in the first embodiment, description thereof will be omitted.

  As described above, when the user does not input a password, the image forming apparatus replaces a character string in the image data that matches the keyword with a character string that can be output, that is, a state that can be disclosed, and outputs the character string. . Thereby, when a user who has not acquired a password uses this apparatus, the user acquires data copied in a state where information to be protected such as personal information is kept secret. Therefore, personal information is protected.

(C)
The output of the replaced image data is output from a display unit (for example, a display screen of an operation panel) provided in the image forming apparatus instead of image formation on a sheet by the image forming unit as in the first and second embodiments. It may be done by displaying on the screen. The present invention can also be applied to an image processing apparatus that does not include an image forming unit (corresponding to the image processing unit of the above-described embodiment).

(D)
The image processing apparatus and the image forming apparatus of the present invention may be a printer that does not have a scanner function. In this case, for example, when connected to an external personal computer (PC), character string conversion processing may be performed on image data sent from the PC in the same manner as in the above embodiment. In this case, for example, image data sent from the PC is stored in the HDD of the storage unit.

  The image processing apparatus of the present invention may be an information processing apparatus such as a PC or an office computer. In this case, the image processing apparatus performs, for example, the same processing as described in the above embodiment on the document data created by itself, and applies the document data subjected to such processing to itself. Displayed on a display means such as a display provided, or stored in a storage means such as a memory of the apparatus itself, and accessed from other information processing apparatus etc. via its own display means or a network Or can be displayed on a display means included in the other information processing apparatus.

  The present invention relates to an image forming apparatus such as a multifunction peripheral having functions as a copying machine, a printer, a facsimile machine, and a scanner, or an information processing apparatus such as a PC or an office computer, a mobile phone, a personal digital assistant (PDA), etc. It can be applied to the image processing apparatus.

1 is a configuration diagram of an image forming apparatus according to an embodiment. The conceptual diagram of the keyword which the memory | storage part has memorize | stored. A replacement information table stored in the storage unit. 6 is an operation flowchart of the image forming apparatus according to the present embodiment. Example screen displayed on the operation panel. 5 is an example of image data in the operation of FIG. 5 is an example of image data in the operation of FIG. 5 is an example of image data in the operation of FIG. 5 is an example of image data in the operation of FIG. 5 is an example of image data in the operation of FIG. The replacement information table which the memory | storage part of other Embodiment A has memorize | stored. Other replacement information tables of other embodiment A. 10 is an operation flowchart of an image forming apparatus according to another embodiment B. 14 is an example of image data in the operation of FIG. 14 is a replacement information table stored in an image forming apparatus according to another embodiment B.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Multifunction device 2 Document reading part 3 Storage part 3a Keyword list 3b Replacement information table 4 Detection part 5 Control part 6 Search part 7 Replacement part 8 Image forming part 9 Password issuing part 10 Image processing part

Claims (7)

An image processing apparatus for performing predetermined image processing on image data including a character string,
Storage means for storing a predetermined first character string;
Search means for searching for the same character string as the first character string from the character strings included in the image data;
Replacement means for replacing a character string in the image data hit as a result of the search by the search means with a second character string different from the first character string;
When the second character string replaced by the replacement means is further replaced with a third character string that is closer to or the same as the first character string than the second character string, input from the outside A password issuing means for issuing at least one password to be issued;
Detecting means for detecting the password input from the outside,
The storage means further stores replacement information indicating how to replace the second character string in association with the password,
In the replacement information, it is determined according to the length of the password how close the replacement second character string is to be replaced with the first character string before replacement,
The replacing means further replaces the second character string with the third character string based on the replacement information corresponding to the password detected by the detecting means;
Image processing device. Further comprising document reading means for obtaining the image data including the character string by reading the document containing character information, the image processing apparatus according to claim 1. An image processing apparatus for performing predetermined image processing on image data including a character string,
Storage means for storing a predetermined first character string;
Search means for searching for the same character string as the first character string from the character strings included in the image data;
Replacement means for replacing a character string in the image data hit as a result of the search by the search means with a second character string different from the first character string;
When the second character string replaced by the replacement means is further replaced with a third character string that is closer to or the same as the first character string than the second character string, input from the outside A password issuing means for issuing at least one password to be issued;
Detecting means for detecting the password input from the outside,
The storage means further stores replacement information indicating how to replace the second character string in association with the password,
Wherein the replacement information, according to the number of the passwords are determined whether to replace the second string wherein substituted on how close state with respect to the first character string before replacement,
The replacing means further replaces the second character string with the third character string based on the replacement information corresponding to the password detected by the detecting means;
Image processing device. The image processing apparatus according to claim 3 , further comprising a document reading unit configured to read a document including character information and acquire image data including the character string. An image processing device according to any one of claims 1 to 4 ,
Image forming means capable of forming an image on a transfer material based on the image data replaced by the replacing means of the image processing apparatus;
An image forming apparatus. An image processing program executed in a computer of an image processing apparatus for performing predetermined processing on image data,
The computer,
Search means for searching for the same character string as the predetermined first character string stored in the storage means from among the character strings included in the image data;
Replacement means for replacing a character string in the image data hit as a result of the search by the search means with a second character string different from the first character string;
When the second character string replaced by the replacement means is further replaced with a third character string that is closer to or the same as the first character string than the second character string, input from the outside A password issuing means for issuing at least one password to be issued;
Function as a detection means for detecting the password input from the outside,
When functioning as the replacement means , based on any one of the length and number of passwords detected by the detection means, how close the second character string is to the first character string before replacement To replace the second character string with the third character string in the determined state .
Image processing program. An image processing method for performing predetermined processing on image data,
A search step of searching for a character string that is the same as a predetermined first character string stored in a storage unit, from among character strings included in the image data,
A replacement step of replacing a character string in the image data hit as a result of the search in the search step with a second character string different from the first character string;
When the second character string replaced by the replacement step is further replaced with a third character string that is closer to or the same as the first character string than the second character string, input from the outside A password issuing step for issuing at least one password to be executed;
A detection step of detecting the password input from the outside,
In the replacement step, based on any one of the length and the number of passwords detected in the detection step, how close the second character string is to the state of the first character string before replacement And further replacing the second character string with the third character string in the determined state .
Image processing method.

Images