CN1949818A - File printing method, device and system - Google Patents
File printing method, device and system Download PDFInfo
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- CN1949818A CN1949818A CN 200610114303 CN200610114303A CN1949818A CN 1949818 A CN1949818 A CN 1949818A CN 200610114303 CN200610114303 CN 200610114303 CN 200610114303 A CN200610114303 A CN 200610114303A CN 1949818 A CN1949818 A CN 1949818A
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- 238000007639 printing Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000011159 matrix material Substances 0.000 claims description 66
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- 238000010586 diagram Methods 0.000 description 11
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- 235000019713 millet Nutrition 0.000 description 4
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- 238000013459 approach Methods 0.000 description 1
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Abstract
The invention discloses a method, device and system for implementing document printing by embedded digital watermark information, comprising: obtaining dot array iamge data of a to-be-printed document; embedding digital watermark information into the dot array image data; and printing the dot array image data. And the printing course is simple and the printing has good flexibility; it need not manually separate picture contents from character contents, further raising working efficiency; it has a wide application range and brings about very great convenience to the most common office document printout. Further, it prevents the possibility of modifying and destroying the watermark information inserted in important documents, thus largely enhancing safety coefficient and having important application value.
Description
Technical field
The present invention relates to the document printing techniques field, particularly utilize embed digital watermark information to realize method, the Apparatus and system of secure print document.
Background technology
Along with the fast development of computer network and multimedia system, Digital Media (digital audio, digital picture, digital video) is widely used, and the copyright protection of Digital Media and integrity protection also become a problem demanding prompt solution.And wherein important documents not only exists in the computer with number format, and it can also be propagated with the form of paper by methods such as printing, scanning, duplicating.In fact many paper sheet document (as contract, bill etc.) are more valuable than the multimedia of those audio frequency, video or image and so on.And along with the application of equipment such as computer, printer and scanner with popularize, make copy and reproduction technology become relatively easy, thereby the copyright protection work of important documents is seemed particularly urgent.Digital watermark technology is one of effective ways that address this problem.
Digital watermarking is that relevant with digital media content or more incoherent beacon information are directly embedded in the middle of the digital media content, but does not influence the information of raw content, can not be perceiveed by people's consciousness system or notice.By these hidden information in digital media content, can reach confirm creator of content, buyer, content whether true complete and other set purposes.Digital watermark technology is identified for copyright provides a kind of valid approach, and copyright protection, the content that it not only can be applied to digital products such as image, text, audio frequency, video and 3-D graphic identified and sign is hidden etc., can also be applied in the printed matter.
But this type of security document all must complete in printing and printing output front end by extra processing procedure at present.Such as by special image processing software, embed watermark information in advance in image, and then image exported; Perhaps in the software for composing before seal, the content after setting type is carried out special processing, thereby carry out hiding of security information or the like.There is very big drawback in these methods: at first, the print procedure of security document is very complicated, and flexibility is not high.And if want to revise the watermark information of embedding, all processes must be restarted; Must adopt different documents editing software at different document formats, its scope of application is very restricted; Under the situation for image mixed character typeset, if want in image and literal all embed watermark informations, also necessary hand image content and word content, copy picture to special image processing software then, perhaps in composing system, embed corresponding watermark information, the difficulty that realizes is bigger, is not suitable for very much common office's document and prints.The risk of this class methods maximum also is in fact, and the telescopiny of all security information is finished before seal, after the data for electronic documents that making finishes must circulate in certain channel and propagate, could arrive and print and print-out equipment.For this class file, also just inevitably existing in the process of circulation in the middle of this has the possibility of being distorted or destroying.
Summary of the invention
The invention provides a kind of document printing method, Apparatus and system, loaded down with trivial details in order to solve the document printing that exists in the prior art to embed digital watermark, realize that difficulty is big, the problem of very flexible.
Document printing method of the present invention comprises the steps:
Obtain the dot matrix image data of waiting to print electronic document;
Embed digital watermark information in described dot matrix image data;
Print the dot matrix image data of described embed digital watermark information.
Preferably, described electronic document is the electronic document of the electronic data file form of the software systems output by supporting printing function, and/or the electronic document of exporting by shared drive and/or shared file and/or Network Transmission mode.
Preferably, obtain the described dot matrix image data of waiting to print electronic document by the grating images process software and/or by GDI function and/or the PCL data interpreter of Windows.
Preferably, employing is based on the image-region embed digital watermark information of digital watermarking algorithm in described dot matrix image data of transform domain.
Preferably, adopt the character area of digital watermarking algorithm in described dot matrix image data to be embedded in digital watermark information based on two-value/many-valued discrete picture.
Preferably, adopt the graphics field of digital watermarking algorithm in described dot matrix image data to be embedded in digital watermark information based on vector graphics;
The present invention also provides a kind of document printing device, comprising:
Acquisition module is used to obtain the dot matrix image data of waiting to print electronic document;
Merge module links to each other with acquisition module, is used at described dot matrix image data embed digital watermark information;
Print module links to each other with merge module, is used to print the dot matrix image data of described embed digital watermark information.
Preferably, further comprise generation module and/or transport module,
Generation module links to each other with acquisition module, is used for the electronic document by the software systems output electronic data file form of supporting printing function;
Transport module links to each other with acquisition module, is used for exporting electronic document by shared drive and/or shared file and/or Network Transmission mode;
Described acquisition module obtains electronic document by generation module and/or transport module.
The present invention provides a kind of document print system again, comprises print module, also comprises:
Acquisition module is used to obtain the dot matrix image data of waiting to print electronic document;
Merge module links to each other with acquisition module, print module, is used at described dot matrix image data embed digital watermark information;
Described print module is printed the dot matrix image data of described embed digital watermark information.
Preferably, further comprise generation module and/or transport module,
Generation module links to each other with acquisition module, is used for the electronic document by the software systems output electronic data file form of supporting printing function;
Transport module links to each other with acquisition module, is used for exporting electronic document by shared drive and/or shared file and/or Network Transmission mode;
Described acquisition module obtains electronic document by generation module and/or transport module.
Beneficial effect of the present invention is as follows:
Owing among the present invention, be that the data of obtaining in the print drive are handled, need not do extra processing to security document in the seal last stage, also do not need the participation of other software systems, so print procedure is simple, flexibility is good;
Because among the present invention, be the dot matrix image data of in printer driver, obtaining after electronic document is changed, thereby can accurately locate wherein text object zone, object picture zone and Drawing Object zone, do not need hand image content and word content, further improved operating efficiency;
Owing to do not need to be concerned about the data format of electronic document among the present invention, so applicable scope is wider, brings facility greatly for the printout of modal office documents.
Further, because the embedding of watermark information is the moment in printout opportunity among the present invention, and exchanges data all is to carry out in the memory of Computer Processing print data, therefore prevented possibility that the watermark information that embeds in the important document content is distorted and destroyed, thereby strengthened coefficient of safety greatly, had important use and be worth.
Description of drawings
Fig. 1 is the implementing procedure schematic diagram of document printing method described in the embodiment;
Fig. 2 is the space of a whole page schematic diagram of a MS-Word document described in the embodiment;
Fig. 3 is to the location schematic diagram after the MS-Word document printed page analysis explanation among Fig. 2 described in the embodiment;
Fig. 4 is the schematic diagram after amplify in the text box zone of Fig. 2 described in the embodiment;
Fig. 5 is the text filed dot matrix image schematic diagram in watermarked back described in the embodiment;
Fig. 6 is a document printing device structural representation described in the embodiment;
Fig. 7 is the structural representation of document print system described in the embodiment.
Embodiment
Design of the present invention is, all text filed by orienting in the printed driver analysis with when explaining space of a whole page data in the space of a whole page, picture region and graphics field, then before sending to print out equipment, intercept and capture the relevant dot matrix image data after explaining, these data also can be passed through shared drive, shared file or Network Transmission mode obtain, the present invention's design is to utilize intercepts and captures the dot matrix image data that need printing before printing, zone behind the location is embedded in digital watermark information respectively then, at last the dot array data after watermarked is covered the relevant position in the original document, re-send to printing device and export, thereby constituted a kind of safe printing method of document.Below in conjunction with accompanying drawing concrete enforcement of the present invention is made an explanation.
Fig. 1 is the implementing procedure schematic diagram of document printing method, and as shown in the figure, document printing method of the present invention can may further comprise the steps when implementing:
In this step; printed driver can be by analyzing the different-format document data flow; obtain all object data information in the space of a whole page; comprising number, position and the size etc. in all text data zones, image data zone and vector figure data zone, these information can be stored in the calculator memory or in the disk file of appointment usually.
In the enforcement, the data format of electronic document can have a variety of, such as the electronic document of the electronic data file form of any software systems output that can support printing function of Adobe PDF commonly used, Microsoft Office document, POSTSCRIPT, picture format and other.Certainly, these data also can obtain by shared drive, shared file or Network Transmission mode.Fig. 2 is a MS-Word document space of a whole page schematic diagram, and Fig. 3 is the location schematic diagram after the printed page analysis of MS-Word document is explained among Fig. 2.As shown in Figure 2, comprise much independently image block and literal piece in the space of a whole page.Location schematic diagram after printed driver is explained document printed page analysis shown in Figure 2 as shown in Figure 3, comprising 2 picture region and 7 text block zones.Zone behind all location is the zone of rectangle frame representative among the figure, and wherein rectangle frame 301 location is a text block zone, and what rectangle frame 302 was located is a picture region, will be that example describes with these two zones in implementing below.
In this step, the method that data for electronic documents is converted to the dot matrix image data can be implemented with following three kinds of methods: a kind of is by calling the GDI function of Windows, document data is converted to dot array data, such as can directly changing for Microsoft Office document commonly used; Another kind method is described original data for electronic documents with specific page-description language, with corresponding interpreter the data flow of page-description language is output as dot matrix then, sends to printing device.Be output as dot matrix such as directly use rasterisation image processing software (RIP, Raster Image Process) to explain for the file of PS/EPS, PDF, Tiff, JPG form.Also original electronic document can be converted to the PS/EPS formatted file in addition, explain output with RIP then; Also can be converted to simultaneously the data flow that printing field printer control language (PCL, printcontrol language) commonly used is described, utilize the PCL data interpreter to be output as dot array data.
Zone behind the location of step 103, basis, respectively with the dot matrix image data backup in the respective regions in the view picture millet cake system of battle formations picture in calculator memory;
After obtaining the document dot matrix image data of view picture face, resulting locating area information in the read step 101 can certainly be kept at corresponding data division backup in the document dot matrix image data on other the memory location in calculator memory.
In this step, can adopt different digital watermarkings to embed algorithm at the dot array data in the dissimilar zones.After being amplified, the dot matrix image data shown in 301 zones among Fig. 3 obtain schematic diagram as shown in Figure 4,301 the representative be the text data zone, and be the black and white image dot array data of two-value, in this enforcement profit, will adopt digital watermarking algorithm to embed information based on the two-value discrete picture, concrete steps are: search for the sealing connected region of being made up of character, obtain the outline code chain of connected region; Calculate the number of pixels of needs upset according to the stain number in the connected region, watermark information bit string and step-length setting; The number of pixels upset pixel of overturning on demand along the outline code chain.Fig. 5 is the text filed dot matrix image schematic diagram in watermarked back, as shown in Figure 5, utilizes above-mentioned watermarking algorithm, and the vision smoothness before and after changing is more satisfactory, and carefully contrast is checked and is not easy to find wherein to hide Info.And, can adopt digital watermarking algorithm embed watermark information based on transform domain for the picture region shown in 302, such as image discrete transform territory conversion (DCT, Discrete Cosine Transform) commonly used etc.If contain Drawing Object in the document, can adopt digital watermarking algorithm embed watermark information based on vector graphics.
Each comfortable original view picture millet cake system of battle formations that respectively the dot matrix image data behind the embed watermark information in each zone covered them is as the position in the data, thereby obtain the dot matrix image data behind the embed watermark information of view picture face, be the security document dot matrix image data that are about to be printed output.
Based on same inventive concept, the present invention also provides a kind of document printing device, below in conjunction with accompanying drawing its embodiment is described.
Fig. 6 is the document printing device structural representation, and as shown in the figure, this device comprises acquisition module 601, merge module 602, print module 603, wherein:
Acquisition module obtains the dot matrix image data of waiting to print electronic document; Merge module embed digital watermark information in the dot matrix image data links to each other with acquisition module; The print module that links to each other with merge module is printed the dot matrix image data of embed digital watermark information.
Acquisition module is analyzed and is conciliate the electron release document data, and text object zone, object picture zone and Drawing Object zone in search and the positioning layout, and data for electronic documents is converted to the dot matrix image data;
This moment can be according to the zone behind the described location, respectively with the dot matrix image data backup in the respective regions in the view picture millet cake system of battle formations picture at calculator memory, or in other storage place;
Merge module, embed watermark information in the image-region that obtains, and respectively the dot array data after watermarked is covered relevant position in the original image, thus obtain the dot matrix image behind the embed watermark information;
Print module will send on the printing device via printed driver through the dot matrix image after the above-mentioned processing and export.
In the enforcement, can also comprise generation module 604, transport module 605,
Generation module links to each other with acquisition module, is used for the dot matrix image data by the software systems output electronic data file form of supporting printing function;
Transport module links to each other with acquisition module, is used for the dot matrix image data of exporting by shared drive and/or shared file and/or Network Transmission mode;
Acquisition module obtains the dot matrix image data by generation module and/or transport module.
Based on same inventive concept, the present invention also provides a kind of document print system, below in conjunction with accompanying drawing its embodiment is described.
Fig. 7 is a document print system structural representation, and as shown in the figure, the document print system comprises print module 603, also comprises: acquisition module 601, merge module 602, wherein:
Acquisition module obtains the dot matrix image data of waiting to print electronic document; Merge module embed digital watermark information in the dot matrix image data links to each other with acquisition module; The print module that links to each other with merge module is printed the dot matrix image data of embed digital watermark information.
Because what print module was required is dot matrix image data behind the embed digital watermark information, so acquisition module, merge module geographically can be outside print module.
According to the foregoing description, acquisition module is analyzed and is conciliate the electron release document data, and text object zone, object picture zone and Drawing Object zone in search and the positioning layout, and data for electronic documents is converted to the dot matrix image data;
This moment can be according to the zone behind the described location, respectively with the dot matrix image data backup in the respective regions in the view picture millet cake system of battle formations picture at calculator memory, or in other storage place;
Merge module, embed watermark information in the image-region that obtains, and respectively the dot array data after watermarked is covered relevant position in the original image, thus obtain the dot matrix image behind the embed watermark information;
Print module will send on the printing device via printed driver through the dot matrix image after the above-mentioned processing and export.
In the enforcement, can also comprise generation module 604, transport module 605,
Generation module links to each other with acquisition module, is used for the dot matrix image data by the software systems output electronic data file form of supporting printing function;
Transport module links to each other with acquisition module, is used for the dot matrix image data of exporting by shared drive and/or shared file and/or Network Transmission mode;
Acquisition module obtains the dot matrix image data by generation module and/or transport module.
In the present invention's design, need not do extra processing to security document in the seal last stage, do not need the participation of other software systems, so print procedure is fairly simple, flexibility is better;
Because among the present invention, in printer driver, obtain the dot matrix image data after electronic document is changed, and can accurately locate wherein text object zone, object picture zone and Drawing Object zone, not need hand image content and word content, further improve operating efficiency;
Owing to do not need to be concerned about the data format of electronic document among the present invention, so applicable scope is wider, especially the printout for modal office documents brings facility greatly.
Because the embedding of watermark information is the moment in printout opportunity among the present invention, and exchanges data all is to carry out in computer, what the watermark information of therefore having avoided well embedding in the important documents content was illegally distorted and destroyed may, thereby strengthened coefficient of safety greatly, had important use and be worth.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1, a kind of document printing method is characterized in that, comprises the steps:
Obtain the dot matrix image data of waiting to print electronic document;
Embed digital watermark information in described dot matrix image data;
Print the dot matrix image data of described embed digital watermark information.
2, the method for claim 1, it is characterized in that, described electronic document is the electronic document of the electronic data file form of the software systems output by supporting printing function, and/or the electronic document of exporting by shared drive and/or shared file and/or Network Transmission mode.
3, the method for claim 1 is characterized in that, obtains the described dot matrix image data of waiting to print electronic document by the grating images process software and/or by GDI function and/or the PCL data interpreter of Windows.
4, the method for claim 1 is characterized in that, adopts the image-region embed digital watermark information of digital watermarking algorithm in described dot matrix image data based on transform domain.
5, the method for claim 1 is characterized in that, adopts the character area of digital watermarking algorithm in described dot matrix image data based on two-value/many-valued discrete picture to be embedded in digital watermark information.
6, the method for claim 1 is characterized in that, adopts the graphics field of digital watermarking algorithm in described dot matrix image data based on vector graphics to be embedded in digital watermark information.
7, a kind of document printing device is characterized in that, comprising:
Acquisition module is used to obtain the dot matrix image data of waiting to print electronic document;
Merge module links to each other with acquisition module, is used at described dot matrix image data embed digital watermark information;
Print module links to each other with merge module, is used to print the dot matrix image data of described embed digital watermark information.
8, printing equipment as claimed in claim 7 is characterized in that, further comprises generation module and/or transport module,
Generation module links to each other with acquisition module, is used for the electronic document by the software systems output electronic data file form of supporting printing function;
Transport module links to each other with acquisition module, is used for exporting electronic document by shared drive and/or shared file and/or Network Transmission mode;
Described acquisition module obtains electronic document by generation module and/or transport module.
9, a kind of document print system comprises print module, it is characterized in that, also comprises:
Acquisition module is used to obtain the dot matrix image data of waiting to print electronic document;
Merge module links to each other with acquisition module, print module, is used at described dot matrix image data embed digital watermark information;
Described print module is printed the dot matrix image data of described embed digital watermark information.
10, print system as claimed in claim 9 is characterized in that, further comprises generation module and/or transport module,
Generation module links to each other with acquisition module, is used for the electronic document by the software systems output electronic data file form of supporting printing function;
Transport module links to each other with acquisition module, is used for exporting electronic document by shared drive and/or shared file and/or Network Transmission mode;
Described acquisition module obtains electronic document by generation module and/or transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101143031A CN100474886C (en) | 2006-11-03 | 2006-11-03 | File printing method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101143031A CN100474886C (en) | 2006-11-03 | 2006-11-03 | File printing method and device |
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| CN1949818A true CN1949818A (en) | 2007-04-18 |
| CN100474886C CN100474886C (en) | 2009-04-01 |
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| CNB2006101143031A Expired - Fee Related CN100474886C (en) | 2006-11-03 | 2006-11-03 | File printing method and device |
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| CN (1) | CN100474886C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004870A (en) * | 2009-08-31 | 2011-04-06 | 株式会社理光 | Image forming apparatus, image forming system, information processing apparatus and information processing method |
| CN102262521A (en) * | 2010-05-28 | 2011-11-30 | 卡西欧计算机株式会社 | Image processing apparatus, method, and storage medium storing a program |
| CN102681976A (en) * | 2012-05-11 | 2012-09-19 | 珠海赛纳打印科技股份有限公司 | Document forming method, consistency judging method and system as well as imaging equipment and system |
| CN102737204A (en) * | 2011-04-01 | 2012-10-17 | 北京利云技术开发公司 | Safety document, and method and apparatus for generating and detecting the safety document |
| CN103985078A (en) * | 2014-05-14 | 2014-08-13 | 北京邮电大学 | Image and text mixing digital watermark embedding and extracting method of resisting to printing and scanning |
| US8886567B2 (en) | 2007-12-06 | 2014-11-11 | Kyocera Mita Corporation | Image processing apparatus, image forming apparatus, and computer-readable recording medium storing image processing program |
| CN104423902A (en) * | 2013-09-02 | 2015-03-18 | 北大方正集团有限公司 | Digital printing control method and system for secret document |
| CN104972743A (en) * | 2014-04-04 | 2015-10-14 | 北大方正集团有限公司 | Ink jet printing method and ink jet printing device |
| CN106484340A (en) * | 2016-09-08 | 2017-03-08 | 中标软件有限公司 | Watermark interpolation is carried out in print procedure to document knows method for distinguishing with watermark |
| CN115208623A (en) * | 2022-05-31 | 2022-10-18 | 长城信息股份有限公司 | Data security transmission method and system for print job |
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2006
- 2006-11-03 CN CNB2006101143031A patent/CN100474886C/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8886567B2 (en) | 2007-12-06 | 2014-11-11 | Kyocera Mita Corporation | Image processing apparatus, image forming apparatus, and computer-readable recording medium storing image processing program |
| US8717591B2 (en) | 2009-08-31 | 2014-05-06 | Ricoh Company, Ltd. | Image forming apparatus, image forming system, information processing apparatus, program, and storage medium |
| CN102004870A (en) * | 2009-08-31 | 2011-04-06 | 株式会社理光 | Image forming apparatus, image forming system, information processing apparatus and information processing method |
| CN102262521A (en) * | 2010-05-28 | 2011-11-30 | 卡西欧计算机株式会社 | Image processing apparatus, method, and storage medium storing a program |
| CN102737204A (en) * | 2011-04-01 | 2012-10-17 | 北京利云技术开发公司 | Safety document, and method and apparatus for generating and detecting the safety document |
| CN102737204B (en) * | 2011-04-01 | 2015-08-05 | 北京利云技术开发公司 | The method and apparatus of a kind of security document and generation and this security document of detection |
| CN102681976B (en) * | 2012-05-11 | 2015-07-01 | 珠海赛纳打印科技股份有限公司 | Document forming method, consistency judging method and system as well as imaging equipment and system |
| CN102681976A (en) * | 2012-05-11 | 2012-09-19 | 珠海赛纳打印科技股份有限公司 | Document forming method, consistency judging method and system as well as imaging equipment and system |
| WO2013166829A1 (en) * | 2012-05-11 | 2013-11-14 | 珠海赛纳打印科技股份有限公司 | Document forming method, consistency determining method and system, and imaging device and system |
| CN104423902A (en) * | 2013-09-02 | 2015-03-18 | 北大方正集团有限公司 | Digital printing control method and system for secret document |
| CN104423902B (en) * | 2013-09-02 | 2018-02-23 | 北大方正集团有限公司 | Digital printing control method and system for secret papers |
| CN104972743A (en) * | 2014-04-04 | 2015-10-14 | 北大方正集团有限公司 | Ink jet printing method and ink jet printing device |
| CN104972743B (en) * | 2014-04-04 | 2016-08-31 | 北大方正集团有限公司 | Ink jet printing method and device |
| CN103985078A (en) * | 2014-05-14 | 2014-08-13 | 北京邮电大学 | Image and text mixing digital watermark embedding and extracting method of resisting to printing and scanning |
| CN106484340A (en) * | 2016-09-08 | 2017-03-08 | 中标软件有限公司 | Watermark interpolation is carried out in print procedure to document knows method for distinguishing with watermark |
| CN106484340B (en) * | 2016-09-08 | 2019-04-05 | 中标软件有限公司 | Watermark addition is carried out to document in print procedure and method for distinguishing is known in watermark |
| CN115208623A (en) * | 2022-05-31 | 2022-10-18 | 长城信息股份有限公司 | Data security transmission method and system for print job |
| CN115208623B (en) * | 2022-05-31 | 2024-02-13 | 长城信息股份有限公司 | Data security transmission method and system for print job |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100474886C (en) | 2009-04-01 |
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