CN101383887A - Information processing device and method - Google Patents
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- CN101383887A CN101383887A CNA200810212486XA CN200810212486A CN101383887A CN 101383887 A CN101383887 A CN 101383887A CN A200810212486X A CNA200810212486X A CN A200810212486XA CN 200810212486 A CN200810212486 A CN 200810212486A CN 101383887 A CN101383887 A CN 101383887A
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Abstract
In an information processing device, error detection information is generated from additional information and a header is generated from error detection information. An encoded header is then generated by appending a header-error correction code to the header and encoded additional information is generated by appending an information-error correction code to the additional information. Finally, an information-appended image is generated by integratedly appending the encoded header and the encoded additional information to the target image.
Description
The cross reference of related application
The application advocate on September 4th, 2007 the Japanese priority file 2007-229329 of Japanese publication and on June 25th, 2008 priority at the Japanese priority file 2008-165945 of Japanese publication, its full content is included in this by reference.
Technical field
The present invention relates to a kind of technology that is used for that additional information appended to image and extracts additional information from the image of additional information.
Background technology
In recent years, the development of information embedded technology makes it possible to additional information is embedded in the printed form document (printed literature).Additional information can be with the initial numberical data of printed form document, printed form document, with the printed form document the relevant information of content protecting of relevant webpage etc.Such additional information can be embedded in the printed form document by drawing specific picture pattern.
A kind of existing method of information embedded technology is that bar code embeds.In order to embed bar code, on the page that is printed with the printed form document, must guarantee to be used for the part of bar code.Yet, have concern, because the part of the embedding bar code on the page can be cut from security standpoint.Therefore, in another prior art, the picture pattern that is not easy to be noted is arranged in the background of printed form document.
For example, Japanese Laid-Open Patent Application has disclosed a kind of information processor 2002-218207 number, and when image information was printed on the page, this device was compound with additional information and image information.In that case, generation is comprised additional information size, be used for revising the header information of the wrong bug patch code of additional information etc.
Japanese Laid-Open Patent Application has disclosed a kind of printing equipment 2005-327266 number, this device generates 2 D code information by arrange yard information and relevant error correcting code in the mode of Two dimensional Distribution, thereby the printed form document on recording medium comprises 2 D code information.
Japanese Laid-Open Patent Application has disclosed a kind of information embedded technology for 2007-005935 number, has arranged the pattern of Special Category in this technology in order to embed additional information in the printed form document.In addition, a kind of error correction technology is used to make the pattern decodable code, thereby can therefrom extract additional information.
Yet, in the use of error correction technology, have restriction.That is to say, in information dropout or under by the situation of using the mistake that the error correction technology can not revise, the possibility that exists incorrect information decoding.Therefore, can not carry out the follow-up information processing function in stable and reliable mode.
Summary of the invention
The objective of the invention is to solve the problems of the prior art to small part.
According to an aspect of the present invention, provide a kind of information processor, this information processor comprises: image acquisition unit is used to obtain target image; The additional information acquiring unit is used to obtain additional information; The error detection information generation unit is used for detecting information from the additional information generation error; The header generation unit is used for generating header from error detection information; The header coding unit is used for by the header error correcting code being appended to the header after header generates coding, and the header error correcting code is used for revising the mistake of header; The additional information coding unit is used for by the information errors correcting code being appended to the additional information after additional information generates coding, and the additional information bug patch code is used for revising the mistake of additional information; And the additional information image generation unit is used for integrally appending to target image by the additional information behind header after will encoding and the coding and generates the additional information image.
According to a further aspect in the invention, a kind of information processor is provided, this information processor comprises: the additional information image acquisition unit, be used to obtain the additional information image, the additional information of described additional information image after by header after will encoding and coding integrally appends to target image and generates, header behind the described coding is the header of encoding and obtaining by to the header additional header bug patch code that generates from error detection information, and the additional information behind the described coding is the additional information of encoding and obtaining by to the additional information additional information bug patch code that appends to target image; Information extraction unit is used for extracting header behind the coding and the additional information behind the coding from the additional information image; The header decoding unit, the header behind the coding that is used for being extracted according to the preassigned particulars correction of header error correcting code is also decoded to obtain decoded header to the header behind the coding that is extracted; The information decoding unit is used for the mistake of the additional information behind correction is extracted according to the information errors correcting code the coding, and the additional information behind the coding that is extracted is decoded to obtain decoded additional information; And the successful determining unit of decoding is used for the comparison of the error detection information that generates according to the error detection information that is stored in decoded header with from decoded additional information, the decoding that determined whether successful execution.
According to another aspect of the invention, provide a kind of information processing method, this information processing method comprises: obtain target image and additional information; Detect information from the additional information generation error; Generate header from error detection information; By the header error correcting code being appended to the header after header generates coding, the header error correcting code is used for revising the mistake of header; By the information errors correcting code being appended to the additional information after additional information generates coding, the additional information bug patch code is used for revising the mistake of additional information; And, integrally append to target image by the additional information behind header after will encoding and the coding and generate the additional information image.
When considered in conjunction with the accompanying drawings, can understand importance on above and other objects of the present invention, feature, advantage and technology and the industry better by reading following detailed description of the currently preferred embodiment of the present invention.
Description of drawings
Fig. 1 is the schematic diagram according to the print system of the embodiment of the invention;
Fig. 2 is the schematic diagram of the exemplary hardware configuration of information processor in the print system;
Fig. 3 is a diagram of describing information process in the print system;
Fig. 4 is the functional configuration block diagram of information processor;
Fig. 5 is a flow chart of describing the information additional treatments of being carried out by information processor;
Fig. 6 is the diagram of exemplary header;
Fig. 7 is the diagram of the header behind the exemplary coding;
Fig. 8 is the diagram of the exemplary configuration of the additional information behind the coding;
Fig. 9 is the diagram of another exemplary configuration of the additional information behind the coding;
Figure 10 be the header after will encode in the mode of concentrating and distribute is described and encode after additional information append to the diagram of the illustrative methods of target image;
Figure 11 is the diagram that is printed on the exemplary additional information image on the page;
Figure 12 is a flow chart of describing the information extraction processing of being carried out by information processor;
Figure 13 is the diagram that is printed on because of the additional information image on the impaired page of stain; And
Figure 14 is a schematic diagram of describing the method for from additional information image shown in Figure 13 additional information behind header behind the coding and the coding being decoded.
Embodiment
Below by describing exemplary embodiment of the present invention with reference to the accompanying drawings in detail.The present invention is not limited to these illustrative examples.
Suppose to be changed to the accurate personal computer of a station symbol (PC), although this information processor is not limited in this according to the information processing apparatus of exemplary embodiment.
Fig. 1 is the schematic diagram according to the print system of the embodiment of the invention.Print system comprises by network 2 interconnective one or more PC1, printer 3 and scanner 4 as local area network (LAN).PC1 generates the digital document data and sends these digital document data by network 2 and prints to printer 3.Scanner 4 reads the digital document data of printing and sends these digital document data by network 2 and carries out information processing to one or more PC1.
Fig. 2 is the schematic diagram of the exemplary hardware arrangement of PC1.PC1 comprises CPU (CPU) 12, read-only memory (ROM) 13, random access storage device (RAM) 14, hard disk drive (HDD) 15, movable storage medium 16, movable storage medium driver 17, network interface 18, display unit 19, as the input unit and the bus control unit 22 of keyboard 20 and mouse 21.ROM 13 is used to store basic input output system (BIOS) etc.RAM 14 is used for interim stored information during information processing as the intermediate store unit.HDD 15 is used for application storing, information processing result etc. as secondary memory cell.Movable storage medium 16 is used to store multiple information.Movable storage medium driver 17 reads information from movable storage medium 16.Network interface 18 by network 2 with PC 1 be connected with scanner 4 ancillary equipment such as grade as printer 3.Display unit 19 is used for showing handling to be upgraded or result.Keyboard 20 and mouse 21 are used for user instruction or information are input to PC 1.Communication between the above-mentioned hardware element of bus control unit 22 control PC 1.
All passing through network interface 18 all about the data communication of PC 1 carries out.About the transfer of data from PC 1, when network interface 18 received data, network interface 18 was given destination device by network 2 with this transfer of data.On the other hand, when passing through network 2 from ancillary equipment reception data, network interface 18 determines whether the data that receive are necessary for PC 1.If the data that receive are necessary for PC 1,18 combined signals of network interface.On the other hand, if the data that receive are dispensable for PC 1,18 of network interfaces destroy data.
When PC 1 started, CPU 12 carried out the input program that is stored among the ROM 13 and operating system (OS, Operation System) is loaded into the RAM 14 from HDD 15.Hardware element in the OS administration PC 1 and software program.Subsequently, according to user instruction, various functions such as executive utility, read information, stored information etc. and be performed.The example of OS is Windows (registered trade mark).Application program can be the computer program that can move in OS, perhaps can be the computer program of carrying out the part of following any information processing function, perhaps is included in the computer program in a series of program files of configuring application software or OS.
To be installed among the HDD 15 from the application program of movable storage medium 16.Yet application program also can directly be carried out from movable storage medium 16.In addition, also this application program being installed to by network interface 18 down load application programs also is possible among the HDD 15.
When application program was moved in OS, CPU 12 carried out various processing capacities and controls the hardware element of PC1 at the center.
Information appendage and information extracting program are stored among the HDD 15.When information appendage and information extracting program moved in OS, CPU 12 carries out the information additional treatments respectively and information extraction is handled.
The block diagram of the functional configuration of the PC 1 that execution information additional treatments and information extraction are handled during Fig. 4.When the information appendage moves in OS, CPU 12 puts the information additional mechanism into practice, and this information additional mechanism comprises target image acquiring unit 31, additional information acquiring unit 32, error detection information generation unit 33, header generation unit 34, header coding unit 35, additional information coding unit 36, additional information image generation unit 37 and print process unit 38.Similarly, when information extracting program moves in OS, CPU 12 puts information extraction mechanism into practice, and this information extraction mechanism comprises additional information image acquisition unit 41, additional information extraction unit 42, header decoding unit 43, additional information decoding unit 44, the successful determining unit 45 of decoding and handles abort unit 46.
Fig. 5 is the flow chart of descriptor additional treatments.At first, target image acquiring unit 31 obtains the target image (step S1) that will add additional information from HDD15.Also can use the target image that is stored in movable storage medium 16, perhaps the target image of downloading by network 2 substitutes from HDD 15 and obtains target image.
Then, additional information acquiring unit 32 obtains the additional information (step S2) that will append to target image.For example, can obtain and the memory location of target image or user's the relevant additional information of user identifier from PC 1, simultaneously, can be from PC 1 or by stabbing service centre's (TSA, Time StampAuthority) acquisition information relevant service time with date printed and time.
Then, error detection information generation unit 33 detects information (step S3) from the additional information generation error.Error detection information is used for determining that whether the aftermentioned information extraction handle successful execution.Error detection information can be parity check code, verification and, message digest algorithm (MD5) or based on Secure Hash Algorithm 1 forms such as (SHA-1) of hash function.
Then, header generation unit 34 generates header, and this header is the code word (step S4) that is expressed as bit sequence.Multiple information as the size of the error detection information that generates at step S3, additional information and be used for type of coding to additional information execution error correction coding, all is stored in the header.Fig. 6 is the diagram of exemplary header.
35 pairs of header execution errors of header coding unit correction is to generate the header (step S5) after encoding.More particularly, header coding unit 35 appends to header with the header error correcting code.The header error correcting code can be piece control header (BCH, Block Control Header) sign indicating number, Reed-Solomon sign indicating number or Turbo code.Fig. 7 is the schematic diagram of the header behind the exemplary coding.
Similarly, 36 pairs of additional information execution errors of additional information coding unit correction coding is to generate the additional information (step S6) after encoding.More particularly, additional information coding unit 36 appends to additional information with the information errors correcting code.Fig. 8 is the diagram of the additional information behind the exemplary coding.Usually, it is long that additional information has the position longer than header.Therefore, except that BCH code or Turbo code, working in the long low-density checksum in long position well also can be as the information errors correcting code of revising the mistake in the additional information.In addition, as shown in Figure 9, each section of Duan Bingwei that also additional information can be divided into a plurality of identical sizes is separated execution error correction coding.
Subsequently, the additional information behind header after additional information image generation unit 37 will be encoded and the coding integrally appends to target image to generate additional information image (step S7).
When the additional information behind header after will encoding and the coding integrally appends to target image, even must determine that the information of the header behind the coding still can accurately extract when burst error takes place from the additional information image.For this reason, the header after must will encode in the mode that distributes and encode after additional information append to target image.Figure 10 be used to illustrate the header after will encode in integrated mode with distributing and encode after additional information append to the diagram of the exemplary process of target image.In the method, the header behind the coding is divided into a plurality of sections, each section has the M position (for example, M=1).In addition, L the unit of additional information behind each coding is divided into a plurality of sections, each section has the M position, thereby the total bit of the additional information behind the coding is N (N=L * M).Then, after the section of the M position of the header behind each coding, the section of the corresponding M position of each unit in L the unit of the additional information after sequentially insertion is encoded.In this way, the bit sequence of the header behind the coding and the bit sequence of the additional information behind the coding generate integrated bit sequence.
When having finished the generation of additional information image in step S7, print process unit 38 is printed additional information image (step S8) on page.More particularly, the fenestral fabric that will be used for position 0 picture pattern " .. " according to integrated bit sequence and be used for the picture pattern ": " of position 1 is incorporated in printing additional information image (referring to Figure 11) on the page again.
Figure 12 is that descriptor is extracted the flow chart of handling.At first, additional information image acquisition unit 41 obtains the additional information image (step S11) that will extract additional information.Here supposing that scanner 4 reads the additional information image and by network 2 the additional information image sent to additional information image acquisition unit 41 from page is used to extract corresponding additional information.Extract additional information in the additional information image alternately, also can be from be stored in HDD 15 or movable storage medium 16 in advance or that download by network 2.
Picture pattern in the additional information extraction unit 42 identification additional information images extracts integrated bit sequence from the additional information image, and separates the bit sequence of the header behind the coding and the bit sequence (step S12) of the additional information behind the coding from integrated bit sequence.Can separate the bit sequence of the header behind the coding and the bit sequence of the additional information behind the coding by reverse the execution with reference to the method for the integrated bit sequence of 10 generations of describing.
Then, wrong in the bit sequence of the header of header decoding unit 43 after according to the isolated coding of header error correcting code correction and to the decoding of the header behind the coding to obtain decoded header (step S13).Here hypothesis particulars of pre-defined type about the header error correcting code in PC 1.
Similarly, additional information decoding unit 44 according to wrong in the bit sequence of the additional information behind the information errors correcting code correction coding and to the decoding of the additional information behind the coding to obtain decoded additional information (step S14).Also can be in PC 1 pre-defined information errors correcting code type or use particulars about the type of information errors correcting code.
Then, whether the error detection information that successful determining unit 45 determines to be stored in the decoded header of decoding mates (step S15) fully with the error detection information that generates from decoded additional information.When the error detection information that is stored in decoded header mates fully with the error detection information that generates from decoded additional information, determine that information extraction handles successfully.
When definite information extraction is handled successfully (step S16 is), carry out the various information processing functions (step S17) according to decoded additional information.For example, when decoded additional information comprises the memory location of target image, then obtain corresponding image file and application software, open from the memory location of appointment.
When failure is handled in definite information extraction (step S16 not), handles stopping the processing capacity that unit 46 is ended subsequently, and by for example on display unit 19 display message notify user profile to extract to handle failure (step S18).
Yet, handle the processing capacity that also can carry out subsequently of failing and substitute termination even determine information extraction.
Figure 13 is the diagram of the additional information image printed on because of impaired pages such as stains.If obtained thisly then to be had a kind of possibility by the integrated bit sequence of the impaired additional information image of part, promptly integrated bit sequence comprises the position of the picture pattern that the position of the picture pattern that has wrong identification maybe can not be identified.Figure 14 describes from header and additional information coding after the method that be correctly decoded of the impaired additional information image of part as shown in figure 13 after to coding.Mistake in the bit sequence of the header after as shown in figure 14, preassigned header error correcting code correction is encoded in PC1 by use is to obtain decoded header.Similarly, by the mistake in the bit sequence that uses the additional information behind the information errors correcting code correction coding to obtain decoded additional information.Subsequently, whether the error detection information of determining to be stored in the header of decoding back mates fully with the error detection information that generates from decoded additional information.In this way, although when having broken parts on the page, also can accurately extract the additional information in the additional information image.Therefore, can stablize and the information processing function of carrying out reliably subsequently.
Therefore, in sum, error detection information is to generate from the additional information that will append to target image.Error detection information has been used to determine whether successful execution information decoding.Header is generated and is used for the information of storage errors detection within it.Subsequently, the header error error detecting code is appended to header after header generates coding.Similarly, the information errors correcting code is appended to additional information after additional information generates coding.Additional information behind header behind the coding and the coding is integrally appended to target image, generate the additional information image.When extracting additional information from the additional information image, whether the error detection information of determining to be stored in the decoded header mates fully with the error detection information that generates from decoded additional information.Therefore, can effectively He accurately from the additional information image, extract additional information.
In addition, because the additional information behind header after will encode with distributed way and the coding appends to target image, therefore when burst error takes place, can accurately decode to the header after encoding.
In addition, because the header decoding after using the header error correcting code to coding, additional information decoding after using the information errors correcting code to coding, and use the error detection information that is stored in the decoded header to determine the success that information extraction is handled, therefore, can accurately extract additional information from information appended drawings picture.Therefore, can stablize and the information processing function of carrying out reliably subsequently.
Simultaneously, in aforesaid independent PC1, carry out, also can in different multiple pc 1, carry out these processing although information additional treatments and information extraction are handled.
In addition, also can use printer, scanner or multifunctional product (multi-function peripheral MPF) to substitute PC 1 as information processor with printing and scan function.
Therefore, according to an aspect of the present invention, can effectively He accurately from the additional information image, extract additional information.
Therefore, can stablize and the information processing function of carrying out reliably subsequently.
Although invention has been described at specific embodiment for complete sum clearly discloses, but appended claim is not therefore and limited, but should be interpreted as comprising that those skilled in the art can draw, obviously fall within all modified examples and alternative constructions in the basic instruction of the present invention.
Claims (15)
1. information processor comprises:
Image acquisition unit is used to obtain target image;
The additional information acquiring unit is used to obtain additional information;
The error detection information generation unit is used for detecting information from the additional information generation error;
The header generation unit is used for generating header from error detection information;
The header coding unit is used for by the header error correcting code being appended to the header after header generates coding, and the header error correcting code is used for revising the mistake of header;
The additional information coding unit is used for by the information errors correcting code being appended to the additional information after additional information generates coding, and the additional information bug patch code is used for revising the mistake of additional information; And
The additional information image generation unit is used for integrally appending to target image by the additional information behind header after will encoding and the coding and generates the additional information image.
2. information processor according to claim 1 further comprises:
The additional information image acquisition unit is used to obtain the additional information image;
Information extraction unit is used for extracting header behind the coding and the additional information behind the coding from the additional information image;
The header decoding unit, the header behind the coding that is used for being extracted according to the preassigned particulars correction of header error correcting code, and the header behind the coding that is extracted decoded to obtain decoded header;
The information decoding unit is used for the mistake of the additional information behind correction is extracted according to the information errors correcting code the coding, and the additional information behind the coding that is extracted is decoded to obtain decoded additional information; And
The successful determining unit of decoding is used for the comparison of the error detection information that generates according to the error detection information that is stored in decoded header with from decoded additional information, the decoding that determined whether successful execution.
3. information processor according to claim 1, wherein,
Header after the additional information image generation unit will be encoded in the mode that distributes and the additional information behind the coding integrally append to target image.
4. information processor according to claim 3, wherein,
The additional information image generation unit generates integrated bit sequence according to the bit sequence of the header of preordering method behind the coding and the bit sequence of the additional information behind the coding.
5. information processor according to claim 2, wherein,
When determining the decoding failure, the successful determining unit of decoding is ended information processing.
6. information processor according to claim 5, wherein,
When determining the decoding failure, the notice of additional information failure is extracted in the successful determining unit output of decoding.
7. information processor comprises:
The additional information image acquisition unit, be used to obtain the additional information image, the additional information of described additional information image after by header after will encoding and coding integrally appends to target image and generates, header behind the described coding is the header of encoding and obtaining by to the header additional header bug patch code that generates from error detection information, and the additional information behind the described coding is the additional information of encoding and obtaining by to the additional information additional information bug patch code that appends to target image;
Information extraction unit is used for extracting header behind the coding and the additional information behind the coding from the additional information image;
The header decoding unit, the header behind the coding that is used for being extracted according to the preassigned particulars correction of header error correcting code is also decoded to obtain decoded header to the header behind the coding that is extracted;
The information decoding unit is used for the mistake of the additional information behind correction is extracted according to the information errors correcting code the coding, and the additional information behind the coding that is extracted is decoded to obtain decoded additional information; And
The successful determining unit of decoding is used for the comparison of the error detection information that generates according to the error detection information that is stored in decoded header with from decoded additional information, the decoding that determined whether successful execution.
8. information processor according to claim 7, wherein,
When determining the decoding failure, the successful determining unit of decoding is ended information processing.
9. information processor according to claim 8, wherein,
When determining the decoding failure, the notice of additional information failure is extracted in the successful determining unit output of decoding.
10. information processing method, described method comprises:
Obtain target image and additional information;
Detect information from the additional information generation error;
Generate header from error detection information;
By the header error correcting code being appended to the header after header generates coding, the header error correcting code is used for revising the mistake of header;
By the information errors correcting code being appended to the additional information after additional information generates coding, the additional information bug patch code is used for revising the mistake of additional information; And
Integrally append to target image by the additional information behind header after will encoding and the coding and generate the additional information image.
11. information processing method according to claim 10 further comprises:
Obtain the additional information image;
Header from the additional information image behind the extraction coding and the additional information behind the coding;
Header behind the coding that is extracted according to the preassigned particulars correction of header error correcting code, and the header behind the coding that is extracted decoded to obtain decoded header;
Mistake in the additional information behind the coding that correction is extracted according to the information errors correcting code, and the additional information behind the coding that is extracted decoded to obtain decoded additional information; And
According to the comparison of the error detection information that is stored in the error detection information in the decoded header and generates from decoded additional information, the decoding that determined whether successful execution.
12. information processing method according to claim 10, wherein,
The step that generates the additional information image comprise the header after will encode in the mode that distributes and encode after additional information integrally append to target image.
13. information processing method according to claim 12, wherein,
The step that generates the additional information image comprises according to the bit sequence of the header of preordering method behind the coding and the bit sequence of the additional information behind the coding and generates integrated bit sequence.
14. information processing method according to claim 11, wherein,
When determining the decoding failure, described method further comprises the termination information processing.
15. information processing method according to claim 14, wherein,
When determining the decoding failure, described method further comprises the notice of output extraction additional information failure.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007229329 | 2007-09-04 | ||
| JP2007-229329 | 2007-09-04 | ||
| JP2007229329 | 2007-09-04 | ||
| JP2008165945A JP5030875B2 (en) | 2007-09-04 | 2008-06-25 | Information processing apparatus, program, additional image generation method, and information extraction method |
| JP2008-165945 | 2008-06-25 | ||
| JP2008165945 | 2008-06-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101383887A true CN101383887A (en) | 2009-03-11 |
| CN101383887B CN101383887B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810212486XA Expired - Fee Related CN101383887B (en) | 2007-09-04 | 2008-09-02 | Information processing device and method |
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| Country | Link |
|---|---|
| JP (1) | JP5030875B2 (en) |
| CN (1) | CN101383887B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3841821B2 (en) * | 1992-09-28 | 2006-11-08 | オリンパス株式会社 | Two-dimensional code reading apparatus and two-dimensional code reading method |
| JP4401578B2 (en) * | 2001-01-16 | 2010-01-20 | キヤノン株式会社 | Information processing apparatus and method, and storage medium |
| JP3809356B2 (en) * | 2001-09-20 | 2006-08-16 | キヤノン株式会社 | Image processing apparatus and method, computer program, and recording medium |
| JP4475622B2 (en) * | 2001-06-15 | 2010-06-09 | キヤノン株式会社 | Image processing apparatus, control method therefor, and computer program |
| JP3774651B2 (en) * | 2001-09-25 | 2006-05-17 | キヤノン株式会社 | Image processing apparatus and method, computer program, and recording medium |
| JP2006211611A (en) * | 2005-01-31 | 2006-08-10 | Kyocera Mita Corp | Image processing system, encryption processing apparatus, decryption processing apparatus and program |
| JP2006279850A (en) * | 2005-03-30 | 2006-10-12 | Sanyo Electric Co Ltd | Image processing apparatus |
| JP4634261B2 (en) * | 2005-09-09 | 2011-02-16 | 株式会社リコー | Image forming apparatus, image processing apparatus, image output apparatus, portable terminal, image processing system, image forming method, image processing method, image output method, image forming program, image processing program, and image output program |
| JP2007088693A (en) * | 2005-09-21 | 2007-04-05 | Oki Electric Ind Co Ltd | Image processing system, tampering verification apparatus, tampering verification method, and computer program |
| JP4047359B2 (en) * | 2006-04-03 | 2008-02-13 | キヤノン株式会社 | Image processing apparatus, image processing apparatus control method, program, and storage medium |
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2008
- 2008-06-25 JP JP2008165945A patent/JP5030875B2/en not_active Expired - Fee Related
- 2008-09-02 CN CN200810212486XA patent/CN101383887B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009081832A (en) | 2009-04-16 |
| CN101383887B (en) | 2011-07-27 |
| JP5030875B2 (en) | 2012-09-19 |
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