CN1930868A - Printing medium quality adjusting system, examining watermark medium output device, watermark quality examining device, adjusted watermark medium output device, printing medium quality adjusting metho - Google Patents

Printing medium quality adjusting system, examining watermark medium output device, watermark quality examining device, adjusted watermark medium output device, printing medium quality adjusting metho Download PDF

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Publication number
CN1930868A
CN1930868A CN 200580008083 CN200580008083A CN1930868A CN 1930868 A CN1930868 A CN 1930868A CN 200580008083 CN200580008083 CN 200580008083 CN 200580008083 A CN200580008083 A CN 200580008083A CN 1930868 A CN1930868 A CN 1930868A
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China
Prior art keywords
watermark
inspection
mentioned
medium
printing
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CN 200580008083
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Chinese (zh)
Inventor
桥本隆志
前野藏人
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Oki Electric Industry Co Ltd
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Oki Electric Industry Co Ltd
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Publication of CN1930868A publication Critical patent/CN1930868A/en
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Abstract

A printing medium quality adjusting system for adequately evaluating and adjusting the quality of an electronic watermark costlessly. An examining watermark medium output device (11) comprises an examining watermark signal generating section (101) which generates one or more examining watermark signals, a watermark signal image after arbitrarily arranging the examining watermark signals, and examining teacher data (105) by digitally recording the examining watermark signals, and an examining medium output section (103) for outputting an examining watermark medium (104) produced by printing the examining watermark image on a medium. A watermark quality examining device (12) comprises a signal detecting section (107) for extracting buried watermark information, a print quality judging section (108) which receives the examining teacher data and judges the watermark quality on the basis of comparison between the watermark information and the examining teacher data, and a print adjustment value output section (109) for outputting a print adjustment value (110) to improve the print quality according to the quality judgment results.

Description

The quality method of adjustment of the quality Adjustment System of print media, inspection watermark media output device, watermark quality inspection device, adjusted watermark media output device, print media and inspection watermark medium
Technical field
Technology is imbedded/read to the eletric watermark that the present invention relates on the print media, particularly relate to print media the quality Adjustment System, check quality method of adjustment and watermark quality inspection medium with watermark media output device, watermark quality inspection device, adjusted watermark media output device, print media.
Background technology
Current, favourable technology from the electronics digital watermark to printed text that imbed information with.Such eletric watermark technological use for example is widely used in by add digital information in printed text and manages or be used to detect distorting of printed text etc.As such technology, for example, " security information is imbedded and detection method to printed text " that the spy opens the 2003-209676 communique is to be used for management information of file etc. hidden Info being embedded to the technology of printed text as watermarking images.A side who obtains the file of band watermark reads this document with scanner device, hides Info thereby obtain.
Generally speaking, the quality of print media is along with based on the difference of the machine of the print structure of printing machine and mode of printing and change.In addition, even same machine, owing to multiple variation also takes place for the surplus of printing ink, the wearing and tearing of printhead segment etc.And even on same medium, press quality is also because the difference in printing position on the medium and difference sometimes.From this point of view, the method as estimating press quality is included in the spy and opens disclosed technology in the flat 5-20437 communique " press quality evaluation method ".Disclosed technology is to estimate the method for the press quality of the paper (sheet) that prints with printing equipment in the document, is concentration greyscale pattern, line pattern, no floral designs etc. are printed onto the method for estimating on the paper of estimating.
In the method that eletric watermark is printed onto on the print media, the quality of eletric watermark is owing to above-mentioned factor changes.Particularly, eletric watermark mostly utilizes than little pattern printings such as literal, because the difference of press quality, the precision that reads of watermark information is produced very big influence.Thereby, in order to realize high-precision quality, must carry out the inspection of the high press quality of reliability, read under the low situation of precision in the watermark of medium, must adjust typographic parameter according to printing environment.
Patent documentation 1: the spy opens the 2003-209676 communique
Patent documentation 2: the spy opens flat 5-20437 communique
Summary of the invention
Invent technical problem to be solved
As the method for existing inspection press quality, comprise to certain printing parameter printing, printing information is that known print media is checked, and the method that check result and printing information are compared.Yet, in order to regulate printing parameter, when parameter changes, all to carry out the output check of print media at every turn and handle, time-consuming.
The present invention finishes in view of the existing the problems referred to above point of the technology of existing inspection press quality, the object of the present invention is to provide a kind of quality evaluation and the quality Adjustment System of the print media after adjustment, new and the improvement, the quality method of adjustment of checking usefulness watermark media output device, watermark quality inspection device, adjusted watermark media output device, print media and inspection watermark medium that the labour just can carry out eletric watermark fully that need not to spend.
The technological means of technical solution problem
In order to address the above problem, according to the 1st aspect of the present invention, a kind of quality Adjustment System of print media is provided, comprises the inspection of the exporting print media watermark quality inspection device of the inspection of watermark medium with the watermark quality of watermark media output device and inspection print media.
Check and possess: check and use the watermark signal generation unit with the watermark media output device, generate inspection watermark signal more than 1 or 1, by configuration at random, generate the watermark signal image, and inspection teacher's data of checking with watermark signal have digitally been write down in generation; Use the medium output unit with checking, output is printed on inspection watermark medium on the medium to inspection with watermarking images.
The feature of watermark quality inspection device is to possess: input unit is taken into the input picture of watermark medium as many-valued gray scale checking; Detecting signal unit detects the signal that is embedded in the input picture, takes out the watermark information that is embedded in; Press quality identifying unit, input checking teacher's data are compared with inspection watermark information with teacher's data, carry out the judgement of watermark quality; With printing adjusted value output unit, according to the quality judging result, output is used to improve the printing adjusted value of press quality.
According to such system,, can export the printing adjusted value of the watermark press quality on the print media that can adjust in this watermark printing environment by output, inspection medium of inspection.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
In the quality Adjustment System of print media of the present invention, can carry out following application.
Can also form the system of the adjusted watermark media output device that further comprises input printing adjusted value, output adjusted print media.Here, the feature of adjusted watermark media output device is to possess: the document image generation unit, and according to file data, generation is in the document image that is printed state in the media; The watermark information generation unit is embedded to the information digitalization of imbedding in the medium by making as watermark signal, is transformed to numerical value, carries out N primitive encoding (N is more than or equal to 2) then; Printing adjusted value input unit, input printing adjusted value; Adjusted watermarking images generation unit according to document image and watermark information, generates the watermarking images of having used the printing adjusted value; With the medium output unit, output is watermarking images printing adjusted watermark medium in the media.
According to such system, can in input, use by checking that an inspection with the printing adjusted value that medium obtain, adjusts the watermark press quality on the print media, thereby print high-quality watermark medium.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
Printing adjusted value output unit can be obtained the adjusted value of the position of depending on print media according to the difference of checking with teacher's data and the detected watermark signal of detecting signal unit, and this adjusted value is exported as the printing adjusted value.According to such structure, under the situation of the such printing environment of the press quality decline of the specific location on the print media, by not being integrally but improve the watermark signal concentration level partly, but the reduction of the visibility of print media can be limited in Min..
Check with the watermark signal generation unit and use symbol with anti-mistake, checking that at least a portion with teacher's numerical value is embedded to inspection with in the watermark signal, printing adjusted value output unit can recover to check according to the detected watermark signal of detecting signal unit uses teacher's data.Structure according to such need not to watermark quality inspection device input checking teacher's data, can be only from checking with medium output printing adjusted value.
The press quality identifying unit can be divided into the adjusted value of the position of depending on print media the zone of any amount, adjusted value is set at high zone errors more than or equal to the zone of predetermined threshold, for the zone that is set to high zone errors, be set at pseudo-watermark region with information.According to such structure, even also produce under the situation that detects wrong so low-quality zone existence, also can imbed watermark information by avoiding this zone in the adjustment of carrying out based on concentration level, make the watermark press quality keep constant.In addition, can make watermark concentration print adjustment with being consistent.
Check with the watermark media output device and can generate inspection watermark signal more than 2 or 2, printing adjusted value output unit utilizes the inspection more than 2 or 2 (for example to handle with the total of watermark signal, majority rule), obtain the adjusted value of the position of depending on print media.According to such structure, ask the printing adjusted value by amounting to a plurality of inspections with the inspection message of watermark medium, can carry out more high-precision printing adjustment.
Adjusted watermark media output device can be connected with watermark media output device and watermark quality inspection device with inspection via network, and receives watermarking images at least via network.According to such structure, even, also can carry out high-precision watermark printing asking under the situation that watermark file prints from long-range.
In addition, the printing adjusted value also can receive via network.
Check with the watermark signal generation unit and can check that water India and China imbed the characteristic information of distorting the necessary document image of detection processing.According to such structure, for the watermark of carrying out based on the print media of distorting detection of watermark, can consider the adjustment of the press quality of distorting recall rate, thereby can print the watermark medium that to distort detection high-qualityly.
Printing adjusted value output unit can be the watermark printing parameter that satisfies the permission false recognition rate (false recognition rate of literal identification) of considering literal identification and being predetermined as the output of printing adjusted value.According to such structure, for the watermark print media that carries out the identification of OCR (optical character identification) literal, can consider the adjustment of the press quality of literal discrimination, thereby can print the watermark medium that can carry out the identification of OCR literal high-qualityly.
Check the unlike signal that can have the same information of a plurality of performances with watermark signal.
Check with watermark signal it can is two-dimensional bar signal (being used to form the signal of two-dimensional bar).
Can decide the printing parameter of checking with watermark signal according to the variation of the printing concentration value of watermark signal image.
Can decide the printing parameter of checking with watermark signal according to the variation of the pixel arrangement of watermark signal image.
According to the 2nd aspect of the present invention, provide a kind of inspection watermark media output device of exporting the inspection of print media with the watermark medium.Inspection of the present invention with the feature of watermark media output device is, possess: check and use the watermark signal generation unit, generate the inspection watermark signal more than 1 or 1, by configuration at random, generate the watermark signal image, and inspection teacher's data of checking with watermark signal have digitally been write down in generation; With check that use medium output unit, output will check with watermarking images is printed on inspection watermark medium on the medium.
According to such structure,, can adjust the watermark press quality on the print media in this watermark printing environment by output, inspection medium of inspection.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
Use in the watermark media output device in inspection of the present invention, can carry out following application.
Can also possess and be used for the watermark media compression unit of compression check with the watermark medium.According to such structure,, can easily carry out exchange via network by the pressurized water watermark image.Like this, even, also can carry out high-precision watermark printing asking under the situation that watermark file prints from long-range.
Check with the watermark signal generation unit and can check that water India and China imbed the characteristic information of distorting the necessary document image of detection processing.According to such structure, for the watermark of carrying out based on the print media of distorting detection of watermark, can consider the adjustment of the printed matter system of distorting recall rate, thereby can print the watermark medium that to distort detection high-qualityly.
Check the unlike signal that can have the same information of a plurality of performances with watermark signal.
Check with watermark signal it can is two-dimensional bar signal (being used to form the signal of two-dimensional bar).
Can decide the printing parameter of checking with watermark signal according to the variation of the printing concentration value of watermark signal image.
Can decide the printing parameter of checking with watermark signal according to the variation of the pixel arrangement of watermark signal image.
According to the 3rd aspect of the present invention, the watermark quality inspection device that provides a kind of input checking to use the watermark medium and check the watermark quality of using teacher's data, inspection print media.The feature of watermark quality inspection device of the present invention is to possess: input unit is taken into the input picture of watermark medium as many-valued gray scale checking; Detecting signal unit detects the signal that is embedded in the input picture, takes out the watermark information that is embedded in; Press quality identifying unit, input checking teacher's data by watermark information is compared with teacher's data with inspection, are carried out the judgement of watermark quality; With printing adjusted value output unit, according to the quality judging result, output is used to improve the printing adjusted value of press quality.
According to such structure, can in input, use by checking that an inspection with the printing adjusted value that medium obtain, adjusts the watermark press quality on the print media, thereby can print high-quality watermark medium.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
In watermark quality inspection device of the present invention, can carry out following application.
Printing adjusted value output unit can be obtained the adjusted value of the position of depending on print media according to the difference of checking with teacher's data and the detected watermark signal of detecting signal unit, and this adjusted value is exported as the printing adjusted value.According to such structure, press quality in the specific location on the print media reduces under the situation of such printing environment, by not being integrally but improve the concentration level of watermark signal partly, but the reduction of the visibility of watermark medium can be limited in Min..
Check and to use symbol with anti-mistake with the watermark signal generation unit, checking that at least a portion with teacher's data is embedded to inspection with in the watermark signal, printing adjusted value output unit can recover to check according to the detected watermark signal of detecting signal unit uses teacher's data.Structure according to such need not to watermark quality inspection device input checking teacher's data, can be only from checking with medium output printing adjusted value.
The press quality identifying unit can be assigned to the adjusted value of the position of depending on print media in the zone of any amount, adjusted value is set at high zone errors more than or equal to the zone of predetermined threshold, for the zone that is set to high zone errors, be set at pseudo-watermark region with information.According to such structure, even also produce under the situation that detects wrong so low-quality zone existence, also can imbed watermark information by avoiding this zone in the adjustment of carrying out based on concentration level, make the watermark press quality keep constant.In addition, can make watermark concentration print adjustment with being consistent.
Check with the watermark media output device and can generate inspection watermark signal more than 2 or 2, printing adjusted value output unit can utilize the inspection more than 2 or 2 (for example to handle with the total of watermark signal, majority rule), obtain the adjusted value of the position of depending on print media.According to such structure, ask the printing adjusted value by amounting to a plurality of inspections with the inspection message of watermark medium, can carry out more high-precision printing adjustment.
Printing adjusted value output unit can be the watermark printing parameter that satisfies the permission false recognition rate (false recognition rate of literal identification) of considering literal identification and being predetermined as the output of printing adjusted value.According to such structure, for the watermark print media that carries out the identification of OCR literal, can consider the adjustment of the press quality of literal discrimination, thereby can print the watermark medium that can carry out the identification of OCR literal high-qualityly.
According to the 4th aspect of the present invention, provide a kind of adjusted watermark media output device of importing printing adjusted value, output adjusted print media.The feature of watermark media output device of the present invention is to possess: the document image generation unit, and according to file data, generation is in the document image that is printed state in the media; The watermark information generation unit is embedded to the information digitalization of imbedding in the medium by making as watermark signal, is transformed to numerical value, carries out N primitive encoding (N is more than or equal to 2) then; Printing adjusted value input unit, input printing adjusted value; Adjusted watermarking images generation unit according to document image and watermark information, generates the watermarking images of having used the printing adjusted value; With the medium output unit, output is watermarking images printing adjusted watermark medium in the media.
According to such structure, can in input, use by checking that an inspection with the printing adjusted value that medium obtain, adjusts the watermark press quality on the print media, thereby print high-quality watermark medium.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
According to the 5th aspect of the present invention, a kind of quality method of adjustment of print media is provided, comprising: the inspection of output print media is exported step with the inspection of watermark medium with watermark; Check step with the watermark quality of the watermark quality of checking print media.
Inspection comprises with watermark output step: check to generate step with watermark signal, generate inspection watermark signal more than 1 or 1, by configuration at random, generate the watermark signal image, and inspection teacher's data of checking with watermark signal have digitally been write down in generation; Export step with checking with medium, output is printed on inspection watermark medium on the medium checking with watermarking images.
The watermark quality checks that the feature of step is to comprise: input step is taken into the input picture of watermark medium as many-valued gray scale checking; Signal detection step detects the signal that is embedded in the input picture, takes out the watermark information that is embedded in; Press quality determination step, input checking teacher's data are compared with inspection watermark information with teacher's data, carry out the judgement of watermark quality; With printing adjusted value output step, according to the quality judging result, output is used to improve the printing adjusted value of press quality.
According to such method,, can export the printing adjusted value of the watermark press quality on the print media that can adjust in this watermark printing environment by output, inspection medium of inspection.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
In the quality method of adjustment of print media of the present invention, can carry out following application.
Can also form the method for the adjusted watermark medium output step that further comprises input printing adjusted value, output adjusted print media.Here, the feature of adjusted watermark medium output step is to possess: document image generates step, according to file data, generates the document image that is in printing state in the media; Watermark information generates step, is embedded to information digitalization in the medium by making as watermark signal, is transformed to numerical value, carries out N primitive encoding (N is more than or equal to 2) then; Printing adjusted value input step, input printing adjusted value; The adjusted watermarking images generates step, according to document image and watermark information, generates the watermarking images of having used the printing adjusted value; With medium output step, output is watermarking images printing adjusted watermark medium in the media.
According to such method, can in input, use by checking that an inspection with the printing adjusted value that medium obtain, adjusts the watermark press quality on the print media, thereby print high-quality watermark medium.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
Export in the step at the printing adjusted value, can obtain the adjusted value of the position of depending on print media, this adjusted value is exported as the printing adjusted value according to checking with the difference of teacher's data with detected watermark signal in signal detection step.According to such structure, under the situation of the such printing environment of the press quality decline of the specific location on the print media, by not being integrally but improve the watermark signal concentration level partly, but the reduction of the visibility of print media can be limited in Min..
In checking with watermark signal generation step, use has the symbol of anti-mistake, checking that at least a portion with teacher's numerical value is embedded to inspection with in the watermark signal, in printing adjusted value output step, can recover to check according to detected watermark signal in signal detection step and use teacher's data.Method according to such need not to watermark quality inspection device input checking teacher's data, can be only from checking with medium output printing adjusted value.
In the press quality determination step, the adjusted value of the position of depending on print media can be divided into the zone of any amount, adjusted value is set at high zone errors more than or equal to the zone of predetermined threshold, for the zone that is set to high zone errors, be set at pseudo-watermark region with information.According to such method, even also produce under the situation that detects wrong such quality zone existence, also can imbed watermark information by avoiding this zone in the adjustment of carrying out based on concentration level, make the watermark press quality keep constant.In addition, can make watermark concentration print adjustment with being consistent.
In checking with watermark medium output step, can generate the inspection watermark signal more than 2 or 2, in printing adjusted value output step, can utilize the inspection more than 2 or 2 (for example to handle with the total of watermark signal, majority rule), obtain the adjusted value of the position of depending on print media.According to such method, ask the printing adjusted value by amounting to a plurality of inspections with the inspection message of watermark medium, can carry out more high-precision printing adjustment.
In adjusted watermark medium output step, can receive watermarking images at least through network.According to such method, even, also can carry out high-precision watermark printing asking under the situation that watermark file prints from long-range.
In addition, the printing adjusted value also can receive via network.
In checking, can check that water India and China imbed the characteristic information of distorting the necessary document image of detection processing with watermark signal generation step.According to such method, for the watermark of carrying out based on the print media of distorting detection of watermark, can consider the adjustment of the press quality of distorting recall rate, thereby can print the watermark medium that to distort detection high-qualityly.
In printing adjusted value output step, can be the watermark printing parameter that satisfies the permission false recognition rate (false recognition rate of literal identification) of considering literal identification and being predetermined as the output of printing adjusted value.According to such method, for the watermark print media that carries out the identification of OCR literal, can consider the adjustment of the press quality of literal discrimination, thereby can print the watermark medium that can carry out the identification of OCR literal high-qualityly.
Check the unlike signal that can have the existing same information of multilist with watermark signal.
Check with watermark signal it can is two-dimensional bar signal (being used to form the signal of two-dimensional bar).
Can decide the printing parameter of checking with watermark signal according to the variation of the printing concentration value of watermark signal image.
Can decide the printing parameter of checking with watermark signal according to the variation of the pixel arrangement of watermark signal image.
According to the 6th aspect of the present invention, provide a kind of inspection watermark medium of print media.Inspection of the present invention with the feature of watermark medium is, generates the inspection watermark signal more than 1 or 1, by configuration at random, and generation watermark signal image, and print inspection watermarking images in the media.
According to such structure,, can adjust the watermark press quality on the print media in this watermark printing environment by output, inspection medium of inspection.Like this, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
Use in the watermark medium in inspection of the present invention, can carry out following application.
Check the unlike signal that can have the same information of a plurality of performances with watermark signal.
Check with watermark signal it can is two-dimensional bar signal (being used to form the signal of two-dimensional bar).
Can decide the printing parameter of checking with watermark signal according to the variation of the printing concentration value of watermark signal image.
Can decide the printing parameter of checking with watermark signal according to the variation of the pixel arrangement of watermark signal image.
According to the 7th aspect of the present invention, provide a kind of inspection watermark media output device of exporting the inspection of print media with watermark medium (check and use paper).Inspection of the present invention is to possess with the feature of watermark media output device: import the inspection pattern input unit of a plurality of inspections with pattern; The inspection parameter input unit of input checking parameter; The configuration inspection inspection of pattern watermark media Design unit on checking with the watermark medium; With output by checking with the inspection of watermark media Design cell design with the inspection of watermark medium with watermark medium output unit, check with watermark media Design unit and on checking, be divided into a plurality of area of the pattern with the watermark medium, according to checking with pattern and checking that parameter is created on the check pattern group who uses in the inspection, for each area of the pattern, the inspection pattern that configuration and inspection are disposed accordingly with the position on the watermark medium.
According to such structure, by the parameter of a plurality of patterns of checking usefulness and the scope that will check, the watermark medium of design review (check) (DR) automatically are provided.
Use in the watermark media output device in inspection of the present invention, can carry out following application.
Check with pattern and can comprise at least a in dot pattern, concentration pattern, line pattern, character pattern, the greyscale pattern.
Check with watermark media Design unit and can be divided into sub pattern group more than 1 or 1 checking with the pattern group, each sub pattern group configuration in each different inspections usefulness watermark medium.According to such structure, can check, thereby can design the quality inspection watermark medium that can carry out automatically based on the quality evaluation in printing position with the identical check pattern of a plurality of position configurations on the watermark medium.
Under the situation that sub pattern group's pattern numbers is lacked than the area of the pattern number of checking with the watermark medium, check with watermark media Design unit and can in different area of the pattern, dispose a plurality of (disposing repeatedly) identical inspection pattern.
Check with watermark media Design unit and can and check the size of using paper according to the inspection parameter of being imported, the necessary inspection of calculating inspection watermark medium number.
Checking can be when calculating inspection be counted with the watermark medium with watermark media Design unit, obtain the check pattern number that to check according to the inspection parameter, the remainder of the number of regions of checking the short side direction of using paper and check pattern number is used watermark medium number as checking.
Check with watermark media Design unit and can be divided into clathrate with the area of the pattern on the watermark medium checking, one type the check pattern of configuration more than 1 or 1 on all coordinates of checking an edge direction using the watermark medium, change the coordinate to edge direction of each check pattern, make a limit to all coordinates of edge direction on the check pattern of configuration more than 1 or 1.According to such structure, can be not decentralized configuration check pattern on checking excessively or insufficiently with the watermark medium, can utilize high accuracy and minimal inspection to carry out inspection watermark medium thereby can generate automatically based on the quality evaluation of checking the position with the watermark medium.
The change of the coordinate of check pattern can generate checking that the coordinate with an edge direction of watermark medium is the arithmetic progression of item No., decides coordinate according to the number of regions to edge direction on an arithmetic progression and a limit.
The tolerance of arithmetic progression can be the value that determines according to the number of regions to edge direction.
In addition, according to others of the present invention, provide a kind of and be used to make computer to be used as above-mentioned inspection with the program of watermark media output device, watermark quality inspection device or adjusted watermark media output device and the recording medium that can read by computer that write down this program.Here, program can be by program language description arbitrarily.In addition, as recording medium, but for example can adopt CD-ROM, DVD-ROM, floppy disk etc. as the recording medium of logging programs in the recording medium of current general use or any recording medium of using in the future.
The effect of invention
As described above, according to the present invention, need not to spend the labour and just can carry out the quality evaluation and the adjustment of eletric watermark fully.
Description of drawings
Fig. 1 is the key diagram of the structure of expression the 1st execution mode.
Fig. 2 is the flow chart of the action of expression the 1st execution mode.
Fig. 3 is that the flow chart that generates the details of handling (S111) with watermark is checked in expression.
Fig. 4 checks with watermark signal to generate the key diagram of handling (S115).
Fig. 5 checks with watermark block to generate the key diagram of handling (S116).
Fig. 6 is the flow chart that expression watermark quality judging is handled the details of (S113).
Fig. 7 is the key diagram of the structure of expression the 2nd execution mode.
Fig. 8 is the flow chart of the action of expression the 2nd execution mode.
Fig. 9 is the flow chart that the watermark quality judging in expression the 3rd execution mode is handled the details of (S113).
Figure 10 is that the adjusted value matrix generates the key diagram of handling (S303).
Figure 11 is the flow chart that the watermark quality judging in expression the 4th execution mode is handled the details of (S113).
Figure 12 is the key diagram of the shielding processing (S402) of high zone errors.
Figure 13 is the flow chart that the watermark quality judging in expression the 5th execution mode is handled the details of (S113).
Figure 14 is that a plurality of watermark medium amount to the key diagram of handling (S503).
Figure 15 is the key diagram of the structure of expression the 6th execution mode.
Figure 16 is the flow chart of the action of expression the 6th execution mode.
Figure 17 is the key diagram of the structure of expression the 7th execution mode.
Figure 18 is the inspection in expression the 8th execution mode generates the details of handling (S111) with watermark a flow chart.
Figure 19 is the flow chart that the watermark quality judging in expression the 8th execution mode is handled the details of (S113).
Figure 20 is that the recall rate of distorting of each concentration level amounts to the key diagram of handling (S811).
Figure 21 is the flow chart that the watermark quality judging in expression the 9th execution mode is handled the details of (S113).
Figure 22 is the key diagram of the structure of expression the 10th execution mode.
Figure 23 is the flow chart that the processing of watermark media Design unit is used in the inspection in expression the 10th execution mode.
Figure 24 is the flow chart that the check pattern all living creatures in expression the 10th execution mode becomes to handle the details of (S1002).
Figure 25 is the flow chart that the processing of watermark media Design unit is used in the inspection in expression the 11st execution mode.
Figure 26 is that the check pattern group configuration of expression in the 11st execution mode handled the (flow chart of the details of S1102～S1104).
Figure 27 is the flow chart that the check pattern group configuration in expression the 12nd execution mode is handled the details of (S1004).
Figure 28 is the flow chart that the transfer pattern all living creatures in expression the 12nd execution mode becomes to handle the details of (S1202).
Figure 29 is the flow chart that the transfer pattern group configuration in expression the 12nd execution mode is handled the details of (S1203).
Symbol description
11: check and use the watermark media output device
12: the watermark quality inspection device
101: check and use the watermark signal generation unit
103: check and use the medium output unit
104: check and use the watermark medium
105: check and use teacher's data
106: input unit
107: detecting signal unit
108: the press quality identifying unit
109: printing adjusted value output unit
110: the printing adjusted value
21: adjusted watermark media output device
201: file data
202: the document image generation unit
203: imbed information
204: the watermark information generation unit
205: printing adjusted value input unit
206: adjusted watermarking images generation unit
207: check and use the medium output unit
208: the watermark medium
61: the watermark media transmission device
62: the watermark media receiving apparatus
601: the watermark file compression unit
602: the compression watermark file
603: host apparatus
604: network
605: receiving element
606: the watermarking images regeneration unit
607: watermark medium output unit
1000: check and use the watermark media output device
1001: check and use pattern
1002: check and use the pattern input unit
1003: check parameter
1004: check parameter input unit
1005: check the paper design cell
1006: check the paper output unit
1007: check and use the watermark medium
Embodiment
Following with reference to accompanying drawing, explain the quality Adjustment System of print media of the present invention, the preferred forms that inspection is used the watermark medium with the quality method of adjustment and the inspection of watermark media output device, watermark quality inspection device, adjusted watermark media output device, print media.In addition, in this specification and accompanying drawing, the inscape that has the identical function structure is in fact marked identical symbol, thereby omit repeat specification.
(the 1st execution mode)
Fig. 1 is the key diagram of the structure of expression the 1st execution mode.
In the present embodiment, as shown in Figure 1, illustrate and check with watermark media output device 11 and watermark quality inspection device 12.
(inspection) with watermark media output device 11
Inspection is used watermark media output device 11 as shown in Figure 1, constitutes to possess to check with watermark signal generation unit 101 and inspection medium output unit 103.Check that with watermark signal generation unit 101 are a plurality of inspection watermark signals that generate the parameter variation that makes watermark signal, it is disposed the functional unit that the back generates the watermark signal image arbitrarily.Checking with medium output unit 103 to be output devices such as printer, is that watermarking images is printed onto functional unit on the medium.Check with watermark medium 104 it is to imbed the medium that inspection obtains with the laggard row printing of watermark, physically handled.Inspection has digitally been write down with teacher's data 105 and has been printed on the watermark signal of checking with on the watermark medium.
(watermark quality inspection device 12)
Watermark quality inspection device 12 as shown in Figure 1, constitute possess input unit 106, detecting signal unit 107, press quality identifying unit 108 and printing adjusted value output unit 109.Input unit 106 is input mediums such as scanner, is print media is taken into the functional unit of computer as many-valued image gray, and detecting signal unit 107 is that input picture is carried out Filtering Processing, detects the functional unit of the signal that is embedded in.From the signal that is detected, take out the watermark information that is embedded in.Press quality identifying unit 108 is by the inspection of the watermark information that obtains in previous stage with digitally input being compared with teacher's data 105, judging the functional unit of watermark quality.Printing adjusted value output unit 109 is according to the quality judging result who obtains in previous stage, and output is used to improve the functional unit of the printing adjusted value of press quality.Printing adjusted value 110 is the printing adjustment information that are output.Both can be recorded on the physical medium, the data that also can be used as on the computer are handled.
Watermark quality inspection device 12 can be imported a plurality of inspections respectively with medium 104 and inspection teacher's data 105, obtains the printing adjusted value.
Present embodiment as above constitutes.The action of present embodiment then, is described with reference to Fig. 2～Fig. 6.
At first, with reference to Fig. 2, the molar behavior of present embodiment is described roughly.
At first, generate inspection watermark (step S111) by checking with watermark signal generation unit 111.Chat after with reference to Fig. 3～5 with the watermark generative process about this inspection.Then, by watermark medium output unit 103 outgoing inspections watermark medium (step S112).Then, judge watermark quality (step S113) by press quality identifying unit 108.Chat after about this watermark quality judging process with reference to Fig. 6.Then, by printing adjusted value output unit 109 output printing adjusted values (step S114).
Generate processing (step S111) with reference to Fig. 3～above-mentioned inspection of 5 explanations with watermark.
Fig. 3 is that the flow chart that generates the details of handling (step S111) with watermark is checked in expression.
Inspection generates with watermark and handles (step S111) as shown in Figure 3, is the process of sequential processes step S115～step S119.Below each processing of explanation.
＜check with watermark signal to generate processing (step S115)
Fig. 4 checks with watermark signal to generate the key diagram of handling (step S115).
Make concentration level N (1 from watermark signal S (S is 2 values or the signal pattern more than the 2 values) generation of common information is imbedded, using ... n) inspection of Bian Huaing watermark E NWatermark signal for example utilizes the spy and opens the technology generation of putting down in writing in the 2003-209676 communique.Disclosed watermark signal utilizes the ripple that the arrangement performance of point (black pixel) has optional wavelength and direction in same document.Therefore disclosed watermark signal generation technique in same document omits detailed explanation owing to only be to be used for realizing checking an example that generates processing (step S115) with watermark signal.In addition, when realizing checking, can certainly adopt other watermark signal generation technique with watermark signal generation processing (step S115).
In watermark signal detects, check and use watermark signal E NMust have the signal characteristic that can utilize the signal detecting method identical to detect with watermark signal S.Under the situation of the watermark signal of the method for opening the 2003-209676 communique based on the spy, utilize Gabor filter to carry out input.Therefore, the point by adding pattern can make to detect to become easy so that emphasize the frequecy characteristic part of signal.Therefore, as shown in Figure 4, add N around the point in signal and emphasize to generate inspection watermark signal E with signaling point NThe uniformity of the watermark in order to keep printing also disposes with identical density in addition in frequecy characteristic part (being the part of a upper left oblique arrangement among Fig. 4) and to emphasize signaling point.
＜check with watermark block to generate processing (step S116)
Fig. 5 checks with watermark block to generate the key diagram of handling (step S116).
At random dispose according to concentration level N (1 ... n) the n kind inspection watermark signal of Sheng Chenging, thus inspection watermark block B generated.This configuration is for example as Fig. 5, on rectangle according to the order of concentration level from upper right alignment arrangements to left down.In addition, also can be according to other arranged in order, can also wait other shape to be configured by arranging about listing one.In addition, can also check that the part of water India and China generates the inspection watermark block by only being configured in the n kind that is generated.Also can generate a plurality of inspection watermark block with the system of selection of watermark according to the inspection that will adopt.
＜check with watermarking images to generate processing (step S117)
Even configuration inspection watermark signal piece B on the media image that will print.Having generated a plurality of inspections, for example evenly dispose all inspection watermark block with under the situation of watermark block.In addition, also the inspection that can be made up by the high inspection water of concentration level in the image circumferential arrangement decides the watermark block that will dispose with watermark block etc. according to the position on the media image.
＜document image generates handles (step S118) 〉
When synthesizing on the watermarking images that generates previous stage in printing as the document image of prospect.Document image is the image that has disposed literal or image, is the image by the watermark protection.Want inspection identical image of repeated configuration in the watermark block of composite document image at each.In addition, in order only to obtain the press quality of watermark, document image also can be comprehensive colourless image.Synthetic method is to synthesize at each pixel overwrite print media image on watermarking images.
＜check with teacher's data output processing (step S119)
Export as checking being embedded to the information of checking water India and China with teacher's data T.The form of output both can be identical with the train of signal of watermark information, also can carry out the compression based on coding.
Having illustrated more than that inspection in the flow chart of Fig. 2 generates with watermark handles (step S111).The details of watermark quality judging processing (step S113) then, is described.
Fig. 6 is the flow chart that expression watermark quality judging is handled the details of (step S113).
The watermark quality judging is handled (step S113) as shown in Figure 6, is the process of sequential processes step S120～S122.Below each processing of explanation.
＜check that the difference with teacher's data and watermark detection data generates processing (step S120) 〉
Check with teacher's data T and the comparison of using the detected watermark information of input picture of medium from inspection.This comparison is carried out according to watermark signal unit, the difference of record and teacher's data.Checking the watermark signal information configuration of using teacher's data on matrix, constitute teacher's information matrix T mIn addition, being configured on the matrix, constitute detection information matrix V from the value of inspection with the detected watermark signal of input picture of watermark medium mTeacher's matrix T mWith detection information matrix V mDifference be set at difference matrix D mAt difference matrix D mIn, in teacher's matrix T mWith detection information matrix V mSet 0 under the situation about equating, set 1 under the different situations.
The difference of＜each concentration level amounts to handles (step S121) 〉
According to resulting difference matrix D m, according to checking that each concentration level with watermark signal amounts to, and obtains the input error rate of each concentration level.
＜printing adjusted value generates handles (step S122) 〉
As the printing adjusted value, the concentration level that utilization is satisfied according to the predetermined permission error rate of input error rate of each concentration level decides the adjustment concentration level.Allow error rate for example to be determined at the input error rate of the watermark medium of printing under the desirable printing environment in advance.In addition, allow error rate also can calculate according to error correcting capability based on the coding method of watermark information.Here Shu Chu printing adjusted value is used for the adjustment of the concentration level of watermark in printing adjustment is handled.
(effect of the 1st execution mode)
As described above, according to the 1st execution mode,, can export the printing adjusted value of the watermark press quality on the print media that can adjust under this watermark printing environment by output, inspection medium of inspection.
(the 2nd execution mode)
Fig. 7 is the key diagram of the structure of expression the 2nd execution mode.
In the present embodiment, as shown in Figure 7, adjusted watermark media output device 21 is described.
(adjusted watermark media output device 21)
Adjusted watermark media output device 21 as shown in Figure 7, constitute possess document image generation unit 202, watermark information generation unit 204, printing adjusted value input unit 205, adjusted watermarking images generation unit 206 and check with medium output unit 207.
File data 201 is data of utilizing generations such as file Core Generator.Document image generation unit 202 is the functional units that generate the image that is in printing state in the media.Specifically, the white pixel district in the document image is the part of not printing any content, and black pixel region is the part with the black paint printing.Imbedding information 203 is to be embedded to information (character string or image, voice data) in the medium etc. as watermark signal.Watermark information generation unit 204 is by making the information of imbedding 203 digitlizations that it is transformed to numerical value and then it is carried out the functional unit of N primitive encoding (N is more than or equal to 2).Printing adjusted value 110 is the printing adjustment information that obtain in the 1st execution mode.Both can be recorded in the physical medium, the data that also can be used as on the computer are handled.Printing adjusted value input unit 205 is functional units of importing the printing adjusted value 110 that obtains by inspection.Adjusted watermarking images generation unit 206 is the functional units that generate the watermark of having used the printing adjusted value.Document image generation unit 202, watermark information generation unit 204 and adjusted watermarking images generation unit 206 can be realized on same computer.Check with medium output unit 207 it is that watermarking images is printed onto functional unit on the medium, can realize with output devices such as printers.Watermark medium 208 are from the adjusted print media of watermark output unit 103 outputs, are physically handled.
In addition, adjusted watermark media output device 21 also can be used as the same device realization of the inspection usefulness watermark media output device 11 in the 1st execution mode.
Present embodiment constitutes as described above.Secondly, the action of present embodiment is described.Fig. 8 is the flow chart of the action of expression the 2nd execution mode.Handling (step S212) with watermarking images formation processing (step S211) and watermark adjustment especially is that the center describes.
(step S210) handled in the input of＜printing adjusted value 〉
At first, from printing adjusted value input unit 205 input printing adjusted values 110.
＜watermarking images forms handles (step S211) 〉
Then, form watermarking images.The watermarking images utilization is for example opened the technology of putting down in writing in the 2003-209676 communique the spy and is generated.Disclosed watermarking images forms the unit and by making the information of imbedding (confidential information etc.) digitlization it is transformed to numerical value in same document, and then it is carried out the N primitive encoding, and (N is the natural number more than or equal to 2, Bit String behind the coding is called as " code word "), give pre-prepd watermark signal with each allocation of symbols of code word, thereby form watermarking images.In addition, disclosed watermarking images formation technology only is to be used to realize that watermarking images forms an example handling (step S211) in same document, therefore omits detailed explanation.In addition, when realizing that watermarking images forms processing (step S211), can certainly take other watermarking images formation technology.
(step S212) handled in＜watermark adjustment 〉
According to the printing adjusted value of being imported, the concentration level of the watermark signal of change print media.Adjustment concentration level with reference in the printing adjusted value is set in corresponding value with concentration level.
(step S213) handled in the output of＜watermark medium 〉
The watermark medium of concentration level have been adjusted in output.
(effect of the 2nd execution mode)
As described above,, can in input, use printing adjusted value, adjust the watermark press quality on the print media, thereby print high-quality watermark medium by checking that an inspection obtains with medium according to the 2nd execution mode.
(the 3rd execution mode)
The structure of the 1st execution mode that the structure of present embodiment illustrated with reference Fig. 1 in fact is identical, therefore omits repeat specification.
The action of present embodiment is described with reference to Fig. 9～Figure 10.
The watermark quality judging of present embodiment in the action of the 1st execution mode that reference Fig. 2 illustrated handled in (step S113) has feature.Fig. 9 is the flow chart that the watermark quality judging in the expression present embodiment is handled the details of (step S113).The watermark quality judging of present embodiment is handled (step S113) as shown in Figure 9, is the process of sequential processes step S301～step S304.Below each processing of explanation.
＜check that the difference with teacher's data and watermark detection data generates processing (step S301) 〉
Identical in fact with the inspection in above-mentioned the 1st execution mode with the difference generation processing (step S120) of teacher's data and watermark detection data.
The difference of＜each concentration level amounts to handles (step S302) 〉
Amount to the difference of each concentration level in above-mentioned the 1st execution mode that to handle (step S121) identical in fact.
＜adjusted value matrix generates handles (step S303) 〉
With the difference with above-mentioned the 1st execution mode is that the center describes.Present embodiment is the adjusted value generation processing of using in the printing adjusted value generation unit of the 1st execution mode based on the error rate of each position.
As shown in figure 10, according to the difference matrix D of the inspection that obtains in previous stage, obtain the adjusted value Matrix C of the position of depending on the print media with teacher's data and detected watermark signal.The computational methods of adjusted value Matrix C for example are in the block matrix B in difference matrix D, to use as the horizontal N of Cmax that detects error EMax, the adjusted value of block B is taken as N EMax+ 1.Here, at N EMax+ 1 surpasses the horizontal N of Cmax MaxSituation under, adjusted value is taken as N Max
＜printing adjusted value generates handles (step S304) 〉
The adjusted value Matrix C that obtains in previous stage is exported as the printing adjusted value.Here Shu Chu printing adjusted value is used for the adjustment of watermark concentration level in the printing value is handled.
(effect of the 3rd execution mode)
As described above, according to the 3rd execution mode, reduce at the ad-hoc location press quality on the print media under the situation of such printing environment, by not being whole but improving the concentration level of watermark signal partly, but the reduction of the visibility of watermark medium can be limited in Min..
(the 4th execution mode)
The structure of present embodiment is identical in fact with the structure of the 1st execution mode that illustrated with reference to Fig. 1, therefore omits repeat specification.
The action of present embodiment is described with reference to Figure 11～Figure 12.
The watermark quality judging of present embodiment in the action of the 1st execution mode that reference Fig. 2 illustrated handled in (step S113) has feature.Figure 11 is the flow chart that the watermark quality judging in the expression present embodiment is handled the details of (step S113).The watermark quality judging of present embodiment is handled (step S113) as shown in figure 11, is the process of sequential processes step S401～step S404.Below each processing of explanation.
(step S401) handled in the extraction of＜adjusted value matrix 〉
Printing adjusted value to input is decoded, and extracts the adjusted value matrix.
The shielding processing of＜high errors present (step S402) 〉
Present embodiment is characterised in that, uses in the adjusted watermarking images generation unit 206 (Fig. 7) of the 2nd execution mode based on the information of errors present and imbeds the determining positions processing.At first, the adjusted value matrix being divided into the zone of any amount, is adjusted value high error-zone more than or equal to the area stores of certain threshold value.Threshold value for example is set at the maximum of adjusted value.
(step S403) handled in the pseudo-datumization of＜screening-off position 〉
Figure 12 is that the key diagram of (step S403) is handled in the pseudo-datumization of screening-off position.
As shown in figure 12, for the zone that is set to high zone errors, set the pseudo-watermark areas that does not have information.The position in false signal district is added the beginning of watermark information to after encoding.In pseudo-zone, imbed signal arbitrarily, imbed watermark information in the zone beyond pseudo-zone, thereby generate watermarking images.The signal that is configured in the pseudo-zone is not the object of input in watermark verification is handled.By the configuration false signal, configurable watermark signal number reduces, and therefore might be able to not dispose necessary number of signals.In this case, for example can not adjust to user's notice.Perhaps, also can notify on the basis of not exclusively adjusting, proceed printing adjustment.
(effect of the 4th execution mode)
As described above,,, can imbed watermark information, make the watermark press quality keep constant by avoiding this zone even also still produce under the situation that detects wrong low-quality zone in the adjustment of carrying out based on concentration level according to the 4th execution mode.In addition, can make watermark concentration print adjustment with being consistent.
(the 5th execution mode)
The structure of present embodiment is identical in fact with the structure of the 1st execution mode that illustrated with reference to Fig. 1, therefore omits repeat specification.
The action of present embodiment is described with reference to Figure 13～Figure 14.
The watermark quality judging of present embodiment in the action of the 1st execution mode that reference Fig. 2 illustrated handled in (step S113) has feature.Figure 13 is the flow chart that the watermark quality judging in the expression present embodiment is handled the details of (step S113).The watermark quality judging of present embodiment is handled (step S113) as shown in figure 13, is the process of sequential processes step S501～step S503.Below each processing of explanation.
＜check that the difference with teacher's data and watermark detection data generates processing (step S501) 〉
Identical in fact with the inspection in above-mentioned the 1st execution mode with the difference generation processing (step S120) of teacher's data and watermark detection data.
The difference of＜each concentration level amounts to handles (step S502) 〉
Amount to the difference of each concentration level in above-mentioned the 1st execution mode that to handle (step S121) identical in fact.
＜a plurality of watermark medium amount to handles (step S503) 〉
Present embodiment is to use in the watermark quality judging unit 113 in the 1st execution mode to utilize a plurality of inspections with the decoding processing of watermark medium with amount to and handle.
For based on a plurality of inspection data T m(m=1 ... M) teacher's data input is obtained to amount to and is checked data value.Acquiring method is checked at each of same position and to be used watermark block B for example as shown in figure 14 m, amount to the difference matrix D in each teacher's data m, use watermark block B for checking mThe interior identical part of checking with watermark signal of concentration level amounts to difference matrix D mValue, according to most decision principles, determine this inspection watermark block B mThe difference value of the watermark signal of interior concentration level n.
＜printing adjusted value generates handles (step S504) 〉
The adjusted value Matrix C that obtains in previous stage is exported as the printing adjusted value.Here Shu Chu printing adjusted value is used for the adjustment of watermark concentration level in adjusted value is handled.
(effect of the 5th execution mode)
As described above,, ask the printing adjusted value with the inspection message of watermark medium, can carry out more high-precision printing adjustment by amounting to a plurality of inspections according to the 5th execution mode.
(the 6th execution mode)
Figure 15 is the key diagram of the structure of expression the 6th execution mode.
In the present embodiment, as shown in figure 15, watermark media transmission device 61 and watermark media receiving apparatus 62 are described.In the present embodiment, be that the center describes with difference with above-mentioned the 1st, the 2nd execution mode.
(watermark media transmission device 61)
Watermark media transmission device 61 is to constitute watermark file by file data, be compressed into the functional unit of exporting after the form that is suitable for sending, as shown in figure 15, constitute possess document image generation unit 202, watermark information generation unit 204, watermark file generation unit 207 and watermark file compression unit 601.Watermark file compression unit 601 is the functional units that the watermark file that is generated carried out reversible compression with arbitrary method.In addition, can also side by side encrypt with compression.Compression watermark file 602 is compressed watermark file data, is handled electronically.
Host apparatus 603 is preserved compressed file data and printing adjusted value, sends to network according to sending request.Network 604 is the communication paths that connect host apparatus 603 and the watermark media receiving apparatus 602 more than at least 1 or 1.
(watermark media receiving apparatus 62)
Watermark media receiving apparatus 62 is the functional units that receive compressed file data and printing adjusted value, generate watermark file, as shown in figure 15, constitute possess receiving element 605, watermarking images regeneration unit 606 and watermark medium output unit 607.Receiving element 605 is the functional units that receive compressed file data and printing adjusted value via network 121.Watermarking images regeneration unit 606 is the functional units that launch the compressed file data, constitute watermark according to the printing adjusted value.Watermark medium output unit 607 is functional units of exporting the watermarking images that is constituted.Wherein, constitute by having with the inspection of the 1st execution mode device with the identical printing characteristic of the watermark medium output unit 103 (Fig. 1) in the watermark media output device 11.
Present embodiment constitutes as described above.Secondly, the action of present embodiment is described.Figure 16 is the flow chart of the action of expression present embodiment.
＜compression watermark file launches to handle (step S608) 〉
With predetermined method the compression watermark file of being imported is launched.Under the situation of when compression, having implemented to encrypt, use key that imported or the interior maintenance of watermarking images regeneration unit to decode.From the watermark file data of launching, obtain file data and watermark signal data.
＜document image processing (step S609) 〉
The file data that obtains in previous stage is transformed to image.
＜watermark signal pattern generationization processing (step S610) 〉
Constitute watermark signal according to watermark data, and be configured on the image.
＜based on the watermark adjustment processing (step S611) of printing adjusted value 〉
Utilize the printing adjusted value imported, carry out the adjustment of the watermarking images that obtains in previous stage and handle.
Processingization processing (step S612) is synthesized in＜document image and watermark 〉
Document image with carry out adjusted watermarking images in previous stage synthetic, is constituted the watermark file image.
(effect of the 6th execution mode)
As described above, according to the 6th execution mode, even, also can carry out high-precision watermark printing asking under the situation that watermark file prints from long-range.
(the 7th execution mode)
Figure 17 is the key diagram of the structure of expression the 7th execution mode.
In the present embodiment, as shown in figure 17, not to send the printing adjusted value, but be directly inputted to the watermark media receiving apparatus via network, different with the 6th execution mode in this.
Secondly, the action of present embodiment is described.Present embodiment is that the center describes with the difference with above-mentioned the 6th execution mode.
Method of utilizing the 1st execution mode in advance etc. is obtained the printing adjusted value, is stored in the watermark media receiving apparatus.When printing, utilize the file data that is received and print adjusted value generation, output file.
(effect of the 7th execution mode)
As described above, according to the 7th execution mode, by in advance the printing adjusted value being stored in the output device of receiving element, need be in host apparatus memory print adjusted value in advance, even relate under polytype situation or under the situation of newly having added output device, also can print adjustment at output device.
(the 8th execution mode)
The structure of present embodiment is identical in fact with the structure of the 1st execution mode that illustrated with reference to Fig. 1, therefore omits repeat specification.
The action of present embodiment is described with reference to Figure 18～Figure 20.In the present embodiment, be that the center describes with difference with above-mentioned the 1st execution mode.
The inspection of present embodiment in the action of the 1st execution mode that reference Fig. 2 illustrated generates to handle in (step S111) and the watermark quality judging processing (step S113) with watermark has feature.Figure 18 is the inspection in the expression present embodiment generates the details of handling (step S111) with watermark a flow chart.The inspection of present embodiment generates with watermark and handles (step S111) as shown in figure 18, is the process of sequential processes step S801～step S807.Below each processing of explanation.
＜check with watermarking images to generate processing (step S803)
As the multi-valued signal of n value, based on the inspection of watermark signal S watermark E nIn, imbed to distort and detect the characteristic information F that handles necessary document image, generate to distort to detect and check watermark.The generation method of characteristic information for example can adopt the spy to open the technology of putting down in writing in the 2003-209676 communique.In same document, disclose by inserting the additional information that is used to distort detection, distorted the function of detection with imbedding information (confidential information etc.).
That is, the feature of disclosed eletric watermark testing fixture is to possess in the same document: imbed the number of signals detecting unit, detect the quantity at the symbolic unit of being imbedded when document image is imbedded confidential information; The filter output value computing unit calculates at output valve input picture, predetermined filters, and is recorded in and respectively imbeds in the zone; The optimal threshold identifying unit according to the calculated value of the detected value of imbedding the number of signals detecting unit and filter output value computing unit, calculates the optimal threshold of the quantity that is used for detecting the symbolic unit that is embedded to watermarking images; Detection signal counting unit, the quantity of detection actual symbolic unit of imbedding in the document image of band watermark; And distort identifying unit, by imbedding the detected value of number of signals detecting unit, judge whether distorting the document image of being with watermark is arranged with the count value of input counting unit compares.Occurring at printed file, in blank parts, adding under character string or the situation with devious conduct such as liquid opaque cancellation arbitrary strings, even without the original text of this document, also can detect and distort, can also determine tampered position.
In addition, the generation method of disclosed characteristic information only is to be used for realizing checking an example that generates processing (step S803) with watermarking images in same document, therefore omits detailed explanation.In addition, when realizing checking, can certainly adopt other characteristic information generation method with watermarking images generation processing (step S803).
＜check with distorting to generate and handle (step S805)
With check with the image of watermarking images same size in generate inspection and use the tampered region.Check with for example distort by add, delete literal or image arbitrarily or replace previous stage synthetic document image a part generate.
＜check with synthetic handle (the step S806) in tampered region
According to pixels unit synthetic inspection of interpolation in checking with watermarking images used the tampered region.With the image that synthesized as checking with using in the watermarking images processing afterwards.Owing to, therefore when watermark verification, be judged to be and distort not comprising the information of checking with distorting in the information that obtains by distorting to detect.
＜check with teacher's data output processing (step S807)
Check with teacher's data it is on the basis of the information in the 1st execution mode, export after position that additional examination usefulness is distorted and the content.
Figure 19 is the flow chart that the watermark quality judging in the expression present embodiment is handled the details of (step S113).The watermark quality judging of present embodiment is handled (step S113) as shown in figure 19, is the process of sequential processes step S808～step S812.Below each processing of explanation.
＜distort to detect and handle (step S810)
Distort detection with the inspection on the watermark medium with the tampered region to checking.The method of distorting detection is for example used the spy and is opened the method for putting down in writing in the 2003-209676 communique.Disclosed literal cancellation is distorted detecting unit by make the document image binaryzation of having imbedded confidential information with predetermined threshold value in same document, with the pixel value of character area as 0, with the pixel value of background area as 1, generate the character area abstract image, to imbed in the middle of the document image of confidential information, the pixel value in zone that can not detect symbolic unit is as 0, the pixel value in the zone that can detect symbolic unit as 1, generate the symbolic unit abstract image, by character area abstract image and symbolic unit abstract image are compared (generation difference image), detect distorting to the document image of band watermark.
Distorting like this detects because the difference of detection level (threshold value of detection) does not detect the alternately generation of situation that tampered position and flase drop are measured non-tampered position.Therefore, distort detection level by change and repeatedly distort detection.Disclosed altering detecting method only is to be used for realizing distorting detecting an example handling (step S810) in same document, therefore omits detailed explanation.In addition, when realizing that distorting detection handles (step S810), can certainly adopt other altering detecting method.
The recall rate of distorting of＜each concentration level amounts to processing (step S811) 〉
Figure 20 is that the recall rate of distorting of each concentration level amounts to the key diagram of handling (step S811).
As shown in figure 20, compare with the information of distorting of teacher's data with the inspection of being imported detecting result of determination at distorting of checking that each concentration level with watermark symbol obtains, judgement correctly detects the zone of distorting.Amount to result of determination according to each watermark concentration level, according to the area E that checks with watermark region s, check with distorting E FN, tampered position do not detect several f f, non-tampered position flase drop go out several f r, obtain and distort recall rate FR.Distort recall rate for example according to FR=(E FN-f f)/E FN+ f r/ E SFormula obtain.
＜printing adjusted value generates handles (step S812) 〉
According to the input error rate of each concentration level with distort recall rate, obtain the concentration level of the permission error rate that satisfies input and satisfy the level of detecting of distorting of the permission mistake recall rate of distorting detection, as the output of printing adjusted value.Allow error rate and permission mistake recall rate for example to be determined at the input error rate of the watermark medium of printing under the desirable printing environment in advance and to distort the mistake recall rate.
(effect of the 8th execution mode)
As described above, according to the 8th execution mode, can consider the press quality adjustment of distorting recall rate based on the watermark of the print media of distorting detection of watermark to carrying out, thereby can print the watermark medium that to distort detection high-qualityly.
(the 9th execution mode)
The structure of the structure of present embodiment and the 1st execution mode that illustrated with reference to Fig. 1 but is handled in 118 in that document image is synthetic much at one, with document image as the detected image that is used to carry out the identification of OCR literal, difference in this.That is, the document image of present embodiment is synthetic handles the literal that complexity aspect that (step S118) be chosen in OCR identification there are differences, and sets a plurality of inspection literal, is configured on the document image.The method of configuration for example determines to making in the inspection that will dispose equal distribution on each concentration level of watermark.
The action of present embodiment is described with reference to Figure 21.
The watermark quality judging of present embodiment in the action of the 1st execution mode that reference Fig. 2 illustrated handled in (step S113) has feature.Figure 21 is the flow chart that the watermark quality judging in the expression present embodiment is handled the details of (step S113).The watermark quality judging of present embodiment is handled (step S113) as shown in figure 21, is the process of sequential processes step S901～step S904.Below each processing of explanation.
＜check that the difference with teacher's data and watermark detection data generates processing (step S901) 〉
Identical in fact with the inspection in above-mentioned the 1st execution mode with the difference generation processing (step S120) of teacher's data and watermark detection data.
The difference of＜each concentration level amounts to handles (step S902) 〉
Amount to the difference of each concentration level in above-mentioned the 1st execution mode that to handle (step S121) identical in fact.
(step S903) handled in＜OCR identification 〉
Carry out discerning with the tampered region to checking based on the literal of OCR with the inspection on the watermark medium.
Compare with the Word message of teacher's data with the inspection of being imported, the ratio of the literal that will correctly be discerned is measured the precision of OCR identification as accuracy of identification.
The OCR discrimination of＜each concentration level amounts to handles (step S904) 〉
According to each concentration level of checking with watermark symbol, amount to previous stage obtain distort the detection result of determination, obtain the literal accuracy of identification of each concentration level.
＜printing adjusted value generates handles (step S905) 〉
According to the input error rate and the literal discrimination of each concentration level, the watermark concentration level of the predetermined permission false recognition rate of discrimination that the satisfied conduct of output can be practical is as the printing adjusted value.The false recognition rate that the medium that allow false recognition rate for example to use utilization to print under desirable printing environment are measured.
(effect of the 9th execution mode)
As described above, according to the 9th execution mode, can consider the press quality adjustment of literal discrimination to the watermark print media that will carry out the identification of OCR literal, thereby can print the watermark medium that can carry out the identification of OCR literal high-qualityly.
(the 10th execution mode)
The design of above-mentioned check pattern of the prior art must manually be carried out, and it is bothersome to take a lot of work.In addition, under the situation of the degree of the press quality of necessity or inspection item increase and decrease, all to design again at every turn, thereby need the cost labour.Therefore, explanation is by the parameter of a plurality of patterns that inspection usefulness is provided and the scope that will check, the method for watermark medium of design review (check) (DR) automatically in the 10th～the 12nd following execution mode.
Figure 22 is the key diagram of the structure of expression the 10th execution mode.
Check as shown in figure 22 with watermark media output device 1000, constitute possess input checking with the inspection of pattern 1001 with the inspection parameter input unit 1004 of pattern input unit 1002, input checking parameter 1003, check with watermark media Design unit 1005 and check that and outgoing inspection is with watermark medium 1007 with watermark medium output unit 1006.
Check with pattern 1001 it is set of a plurality of patterns that can in the inspection of press quality, use, show with the view data on the computer.The shape of view data or area can be set arbitrarily.Check pattern for example is the set of dot pattern, concentration greyscale pattern, line pattern etc.Check with pattern 1001 (and check pattern group described later and check pattern subgroup) and be equivalent in the above-described embodiment as the pattern of checking with the explanation of watermark signal piece.
Check and to remain on the inspection of being imported on the memory with pattern 1001 or on the medium with pattern input unit 1004.
Check that parameter 1003 is the populations of parameters that are chosen in the pattern that uses the quality inspection with pattern 1001 from checking, for example comprise the least concentration/Cmax inspection look necessary precision etc. of checking that to check.
Check that parameter input unit 1004 remains on the memory or on the medium to the inspection parameter of being imported 1003.
Check with watermark media Design unit 1005 and check with on the watermark medium, thereby the inspection watermark medium that quality is checked are carried out in design automatically according to checking with pattern 1001 and check that parameter 1003 is created on the pattern that uses in the inspection, automatically being configured in.
Check with watermark medium output unit 1006 outputing to view data or print media with the inspection that watermark media Design unit 1005 designs with the watermark medium by inspection.According to checking one to many inspection watermark medium of parameter output.
Check with watermark medium 1007 it is view data or print media, keep by the check pattern of checking with 1005 designs of watermark media Design unit.
Present embodiment constitutes as described above.Secondly, the action of present embodiment is described with reference to Figure 23, Figure 24.
Figure 23 is the flow chart that the processing of watermark media Design unit 1005 is used in the inspection in the present embodiment.
＜inspection area dividing processing (step S1001) 〉
Checking the inspection area that becomes to have the area of the configuration that enough is used for check pattern with the Region Segmentation on the watermark medium.Dividing method for example will be checked with the watermark medium and be divided into clathrate.In addition, also can be divided into different areas and shape according to the difference of inspection area.
＜check pattern all living creatures becomes to handle (step S1002) 〉
Use pattern according to checking, utilize and check the check pattern group who generates necessity with parameter.For example, as shown in figure 24, utilize and check that parameter generates the complete inspection pattern that will use, link whole inspection patterns, form the check pattern group.
＜check with the watermark medium and count computing (step S1003)
Obtain the check pattern number that in inspection, uses according to the inspection parameter, according to the area and the check pattern number of inspection area, the necessary inspection of the calculating inspection number of watermark medium.For example, if be Es, check with the watermark medium and be Sw * Sh, when the inspection area is the rectangle of ex * ey, obtain the number ns of inspection usefulness watermark medium with the formula of ns=(Sw/exSh/ey)/Es with the check pattern number.
＜check pattern configuration process (step S1004) 〉
The corresponding check pattern of configuration in each checks with each inspection area of watermark medium.The allocation position of check pattern is for example from checking that the upper right side with the watermark medium begins arranged in order.In addition, also can be according to other arranged in order.
(effect of the 10th execution mode)
As described above, according to the 10th execution mode, by the parameter of a plurality of patterns of checking usefulness and the scope that will check, the watermark medium of design review (check) (DR) automatically are provided.
(the 11st execution mode)
The structure of present embodiment is identical in fact with the 10th execution mode that illustrated with reference to Figure 22, therefore omits repeat specification.
Figure 25 represents the flow chart of the 11st execution mode.The a plurality of same check pattern of configuration on checking with the watermark medium, this point is different with the 10th execution mode.Below, the part different with the 10th execution mode only is described.
＜Region Segmentation is handled (step S1101) 〉
Checking a W * H inspection area that is divided into area with the zone on the watermark medium with the configuration that enough is used for check pattern with becoming clathrate.
＜check pattern all living creatures becomes to handle (step S1102) 〉
Use pattern according to checking, utilize and check the check pattern group who generates necessity with parameter.For example, as shown in figure 24, utilize and check that parameter generates the inspection pattern that will use, link whole check pattern, form the check pattern group.
＜check pattern subgroup generates handles (step S1103) 〉
And then, satisfy any several P of W * H＜P at each, the check pattern group is divided into check pattern subgroup En (n=1 ... N).
＜check with the watermark medium and count computing (step S1104)
Calculating inspection pattern subcluster number is as checking with watermark medium number.For example, if establishing check pattern group's pattern numbers is Es, check that the pattern numbers of subgroup is Pd, then checking that counting ns with the watermark medium is calculated as ns=Es/Pd.
＜check pattern is configuration process (step S1105) repeatedly 〉
The pattern numbers Pd of check pattern subgroup is compared with the number of regions A on the watermark medium with inspection, under the situation of Pd＜A, a plurality of check pattern groups of configuration on checking with the watermark medium.The collocation method of check pattern for example as shown in figure 26, along being the raster scan direction arranged in order check pattern group of initial point to check with the upper left side on the watermark medium.Here, produce under the situation of residue M in the surplus calculation of number of regions A and pattern numbers Pd, for example the beginning from check pattern begins to dispose M.In addition, can also not produce residue ground or make it in the check pattern group, add arbitrary graphic pattern with diminishing.
(effect of the 11st execution mode)
As described above, according to the 11st execution mode, dispose same check pattern in inspection with a plurality of positions on the watermark medium, thereby can automatically design the quality inspection watermark medium that can carry out based on the quality evaluation in printing position.
(the 12nd execution mode)
The structure of present embodiment is identical in fact with the 10th execution mode that illustrated with reference to Figure 22, therefore omits repeat specification.
Figure 27 represents the flow chart of the 12nd execution mode.The point of addition decentralized configuration is handled in check pattern configuration process unit, and this point is different with the 11st execution mode.Below, the part different with the 11st execution mode only is described.
Region Segmentation handles (step S1201) and the check pattern all living creatures becomes to handle (step S1202) identical with above-mentioned the 10th, the 11st execution mode in fact.
＜check pattern subgroup generates handles (step S1203) 〉
Identical in fact with the check pattern subgroup generation processing (step S1103) of the 11st execution mode, but the inspection number of regions W of the pattern numbers Pd of pattern subgroup as the short side direction in zone.
Check with the watermark medium and count computing (step S1204) and the above-mentioned the 10th, the 11st
Execution mode is identical in fact.
＜shift the subgroup to generate processing (step S1205)
Carry out the processing of following (1)～(4), generate at each subgroup and shift the subgroup.
(1) 1 check pattern subgroup En is shifted subgroup En1 as first.
(2) as shown in figure 28,, determine certain specific transfers Wp at interval for each pattern that shifts among the pattern En1, make En1 along about in the middle of a predetermined direction mobile Wp that circulates, obtain second transfer pattern En2.Shift the prime number that interval Wp for example is taken as the approximate number that is not pattern subcluster number Pd.
(3) operation of (2) is repeated number of regions H time of regional long side direction, obtain H shift the pattern group (En1 ... EnH).
(4) to each check pattern subgroup En (n=1 ... N) carry out the operation of (2)～(3), obtain shifting subgroup Enh (n=1 ... N, h=1 ... H).
＜transfer subgroup configuration process (step S1206) 〉
Shift subgroup Enh (n=1 for each ... N, h=1 ... H),
As shown in figure 29,1 shift the subgroup (En1 ..., EnH) along the long side direction arranged in order of checking with the watermark medium, generate N and open and check and use the watermark medium.
(effect of the 12nd execution mode)
As described above, according to the 12nd execution mode, can be on checking with the watermark medium decentralized configuration check pattern excessively or insufficiently not, can carry out inspection watermark medium with the watermark medium with high accuracy and minimal inspection thereby can generate automatically based on the quality evaluation in printing position.
Above with reference to description of drawings the quality Adjustment System of print media of the present invention, check with the quality method of adjustment of watermark media output device, watermark quality inspection device, adjusted watermark media output device, print media and check preferred forms that but the present invention is not limited to such example with the watermark medium.In the category of the technological thought that those skilled in the art obviously can put down in writing in the claims, expect various modifications or revise example, but should know that these also belong to technical scope of the present invention certainly.
Utilizability on the industry
The eletric watermark that the present invention can be used on the print media is imbedded/sensing technique, particularly, Quality Adjustment System, the inspection watermark medium output device, the watermark product that can be used for print media The quality adjusting that device, modulated whole watermark medium output device, print media are looked in quality inspection with And inspection watermark medium.

Claims (39)

1. the quality Adjustment System of a print media comprises: check and use the watermark media output device, the inspection watermark medium of output print media; With the watermark quality inspection device, check the watermark quality of print media, it is characterized in that,
Above-mentioned inspection possesses with the watermark media output device:
Check and use the watermark signal generation unit, generate the inspection watermark signal more than 1 or 1,, generate the watermark signal image, and the inspection teacher data of above-mentioned inspection with watermark signal have digitally been write down in generation by configuration at random;
Check and use the medium output unit, export above-mentioned inspection is printed on inspection watermark medium on the medium with watermarking images,
Above-mentioned watermark quality inspection device possesses:
Input unit is taken into above-mentioned inspection with the input picture of watermark medium as many-valued gray scale;
Detecting signal unit detects the signal that is embedded in the above-mentioned input picture, takes out the watermark information that is embedded in;
The press quality identifying unit is imported above-mentioned inspection teacher's data, and above-mentioned watermark information is compared with teacher's data with above-mentioned inspection, carries out the judgement of watermark quality; With
Printing adjusted value output unit, according to above-mentioned quality judging result, output is used to improve the printing adjusted value of press quality.
2. the quality Adjustment System of print media according to claim 1 is characterized in that,
Also comprise: adjusted watermark media output device, import above-mentioned printing adjusted value, and output adjusted print media,
Above-mentioned adjusted watermark media output device possesses:
The document image generation unit, according to file data, generation is in the document image that is printed state in the media;
The watermark information generation unit is embedded to the information digitalization of imbedding in the medium by making as watermark signal, is transformed to numerical value, carries out N primitive encoding (N is more than or equal to 2) then;
Printing adjusted value input unit is imported above-mentioned printing adjusted value;
Adjusted watermarking images generation unit according to above-mentioned document image and above-mentioned watermark information, generates the watermarking images of having used above-mentioned printing adjusted value; With
The medium output unit, output is above-mentioned watermarking images printing adjusted watermark medium in the media.
3. the quality Adjustment System of print media according to claim 1 is characterized in that,
Above-mentioned printing adjusted value output unit is obtained the adjusted value of the position of depending on above-mentioned print media according to the difference of above-mentioned inspection with teacher's data and the detected watermark signal of above-mentioned detecting signal unit, and this adjusted value is exported as above-mentioned printing adjusted value.
4. the quality Adjustment System of print media according to claim 3 is characterized in that,
Use at least a portion of above-mentioned watermark information to ask above-mentioned inspection teacher's data.
5. the quality Adjustment System of print media according to claim 4 is characterized in that,
Above-mentioned press quality identifying unit is depending on that the adjusted value of the position of above-mentioned print media is divided into the zone of any amount, and above-mentioned adjusted value is set at high zone errors more than or equal to the zone of predetermined threshold,
For the zone that is set to above-mentioned high zone errors, be set at pseudo-watermark region with information.
6. the quality Adjustment System of print media according to claim 4 is characterized in that,
The above-mentioned inspection inspection watermark signal of watermark media output device generation more than 2 or 2,
Above-mentioned printing adjusted value output unit utilizes above-mentioned inspection more than 2 or 2 to handle with the total of watermark signal, obtains the adjusted value of the position of depending on above-mentioned print media.
7. the quality Adjustment System of print media according to claim 3 is characterized in that,
Above-mentioned adjusted watermark media output device is connected with watermark media output device and above-mentioned watermark quality inspection device with above-mentioned inspection via network, and receives above-mentioned watermarking images at least via network.
8. the quality Adjustment System of print media according to claim 7 is characterized in that,
Above-mentioned adjusted watermark media output device also receives the printing adjusted value via network.
9. the quality Adjustment System of print media according to claim 1 is characterized in that,
Above-mentioned inspection is imbedded to distort in above-mentioned inspection water India and China with the watermark signal generation unit and is detected the characteristic information of handling necessary document image.
10. the quality Adjustment System of print media according to claim 2 is characterized in that,
Above-mentioned printing adjusted value output unit is exported the watermark printing parameter that satisfies the permission false recognition rate of considering literal identification and being predetermined as the printing adjusted value.
11. the quality Adjustment System of print media according to claim 1 is characterized in that,
Above-mentioned inspection has the unlike signal of the same information of a plurality of performances with watermark signal.
12. the quality Adjustment System of print media according to claim 1 is characterized in that,
Variation according to the printing concentration value of above-mentioned watermark signal image decides the printing parameter of above-mentioned inspection with watermark signal.
13. the quality Adjustment System of print media according to claim 1 is characterized in that,
Variation according to the pixel arrangement of above-mentioned watermark signal image decides the printing parameter of above-mentioned inspection with watermark signal.
14. an inspection watermark media output device, the inspection watermark medium of output print media is characterized in that possessing:
Check and use the watermark signal generation unit, generate the inspection watermark signal more than 1 or 1,, generate the watermark signal image, and the inspection teacher data of above-mentioned inspection with watermark signal have digitally been write down in generation by configuration at random; With
Check and use the medium output unit, export above-mentioned inspection is printed on inspection watermark medium on the medium with watermarking images.
15. inspection according to claim 14 watermark media output device is characterized in that,
Also possess: the watermark media compression unit that above-mentioned inspection is compressed with the watermark medium.
16. inspection according to claim 14 watermark media output device is characterized in that,
Above-mentioned inspection is imbedded to distort in above-mentioned inspection water India and China with the watermark signal generation unit and is detected the characteristic information of handling necessary document image.
17. inspection according to claim 14 watermark media output device is characterized in that,
Above-mentioned inspection has the unlike signal of the same information of a plurality of performances with watermark signal.
18. inspection according to claim 14 watermark media output device is characterized in that,
Variation according to the printing concentration value of above-mentioned watermark signal image decides the printing parameter of above-mentioned inspection with watermark signal.
19. inspection according to claim 14 watermark media output device is characterized in that,
Variation according to the pixel arrangement of above-mentioned watermark signal image decides the printing parameter of above-mentioned inspection with watermark signal.
20. a watermark quality inspection device, input checking is with the watermark medium and check and use teacher's data that the watermark quality of inspection print media is characterized in that possessing:
Input unit is taken into above-mentioned inspection with the input picture of watermark medium as many-valued gray scale;
Detecting signal unit detects the signal that is embedded in the above-mentioned input picture, takes out the watermark information that is embedded in;
The press quality identifying unit is imported above-mentioned inspection teacher's data, by above-mentioned watermark information is compared with teacher's data with above-mentioned inspection, carries out the judgement of watermark quality; With
Printing adjusted value output unit, according to above-mentioned quality judging result, output is used to improve the printing adjusted value of press quality.
21. watermark quality inspection device according to claim 20 is characterized in that,
Above-mentioned printing adjusted value output unit is obtained the adjusted value of the position of depending on above-mentioned print media according to the difference of above-mentioned inspection with teacher's data and the detected watermark signal of above-mentioned detecting signal unit, and this adjusted value is exported as above-mentioned printing adjusted value.
22. watermark quality inspection device according to claim 21 is characterized in that,
Use at least a portion of above-mentioned watermark information to ask above-mentioned inspection teacher's data.
23. watermark quality inspection device according to claim 21 is characterized in that,
Above-mentioned press quality identifying unit is depending on that the adjusted value of the position of above-mentioned print media is divided into the zone of any amount, and above-mentioned adjusted value is set at high zone errors more than or equal to the zone of predetermined threshold,
For the zone that is set to above-mentioned high zone errors, set the pseudo-watermark region that does not have information.
24. watermark quality inspection device according to claim 21 is characterized in that,
The above-mentioned inspection inspection watermark signal of watermark media output device generation more than 2 or 2,
Above-mentioned printing adjusted value output unit utilizes above-mentioned inspection more than 2 or 2 to handle with the total of watermark signal, obtains the adjusted value of the position of depending on above-mentioned print media.
25. watermark quality inspection device according to claim 20 is characterized in that,
Above-mentioned printing adjusted value output unit is exported the watermark printing parameter that satisfies the permission false recognition rate of considering literal identification and being predetermined as the printing adjusted value.
26. an adjusted watermark media output device, input printing adjusted value, output adjusted print media is characterized in that possessing:
The document image generation unit, according to file data, generation is in the document image that is printed state in the media;
The watermark information generation unit is embedded to the information digitalization of imbedding in the medium by making as watermark signal, is transformed to numerical value, carries out N primitive encoding (N is more than or equal to 2) then;
Printing adjusted value input unit is imported above-mentioned printing adjusted value;
Adjusted watermarking images generation unit according to above-mentioned document image and above-mentioned watermark information, generates the watermarking images of having used above-mentioned printing adjusted value; With
The medium output unit, output is above-mentioned watermarking images printing adjusted watermark medium in the media.
27. the inspection of print media watermark medium is characterized in that,
Generate the inspection watermark signal more than 1 or 1,, generate the watermark signal image, and print above-mentioned inspection watermarking images in the media by configuration at random.
28. inspection according to claim 27 watermark medium is characterized in that,
Above-mentioned inspection has the unlike signal of the same information of a plurality of performances with watermark signal.
29. inspection according to claim 27 watermark medium is characterized in that,
Variation according to the printing concentration value of above-mentioned watermark signal image decides the printing parameter of above-mentioned inspection with watermark signal.
30. inspection according to claim 27 watermark medium is characterized in that,
Variation according to the pixel arrangement of above-mentioned watermark signal image decides the printing parameter of above-mentioned inspection with watermark signal.
31. an inspection watermark media output device, the inspection watermark medium of output print media is characterized in that possessing:
Import the inspection pattern input unit of a plurality of inspections with pattern;
The inspection parameter input unit of input checking parameter;
The above-mentioned inspection of the configuration inspection of pattern watermark media Design unit on checking with the watermark medium; With
Output is by checking with the inspection of watermark media Design cell design with the inspection of watermark medium with watermark medium output unit,
Above-mentioned inspection watermark media Design unit
Be divided into a plurality of area of the pattern in above-mentioned inspection on the watermark medium,
Be created on the check pattern group who uses in the inspection according to above-mentioned inspection with pattern and above-mentioned inspection parameter,
For above-mentioned each area of the pattern, the inspection pattern that configuration and above-mentioned inspection are disposed accordingly with the position on the watermark medium.
32. inspection according to claim 31 watermark media output device is characterized in that,
Above-mentioned inspection comprises at least a in dot pattern, concentration pattern, line pattern, character pattern, the greyscale pattern with pattern.
33. inspection according to claim 31 watermark media output device is characterized in that,
Above-mentioned inspection watermark media Design unit
Above-mentioned inspection is divided into sub pattern group more than 1 or 1 with the pattern group,
Above-mentioned each sub pattern group configuration is used in the watermark medium in each different above-mentioned inspection.
34. inspection according to claim 33 watermark media output device is characterized in that,
Under the situation that above-mentioned sub pattern group's pattern numbers is lacked with the area of the pattern number of watermark medium than above-mentioned inspection, above-mentioned inspection is disposed a plurality of identical above-mentioned inspection patterns with watermark media Design unit in different above-mentioned inspection areas.
35. inspection according to claim 31 watermark media output device is characterized in that,
According to the above-mentioned inspection parameter of being imported and the above-mentioned inspection size with paper, the necessary above-mentioned inspection of calculating inspection is with watermark medium number with watermark media Design unit in above-mentioned inspection.
36. inspection according to claim 35 watermark media output device is characterized in that,
Above-mentioned inspection uses watermark media Design unit when the above-mentioned inspection of calculating is counted with the watermark medium,
Obtain the check pattern number that will check according to above-mentioned inspection parameter,
With above-mentioned inspection with the remainder of the number of regions of the short side direction of paper and above-mentioned check pattern number as above-mentioned inspection usefulness watermark medium number.
37. inspection according to claim 31 watermark media output device is characterized in that,
Above-mentioned inspection watermark media Design unit
Above-mentioned inspection is divided into clathrate with the area of the pattern on the watermark medium,
Above-mentioned inspection with all coordinates of an edge direction of watermark medium on one type the above-mentioned check pattern of configuration more than 1 or 1,
The coordinate to edge direction of above-mentioned each check pattern of change, make an above-mentioned limit to all coordinates of edge direction on the above-mentioned check pattern of configuration more than 1 or 1.
38. according to the described inspection of claim 37 watermark media output device, it is characterized in that,
The change of the coordinate of above-mentioned check pattern
Generation is the arithmetic progression of item No. with above-mentioned inspection with the coordinate of an edge direction of watermark medium,
The number of regions to edge direction according to an above-mentioned arithmetic progression and an above-mentioned limit decides coordinate.
39. according to the described inspection of claim 38 watermark media output device, it is characterized in that,
The tolerance of above-mentioned arithmetic progression is the value that determines according to the number of regions to edge direction.
CN 200580008083 2004-03-29 2005-02-17 Printing medium quality adjusting system, examining watermark medium output device, watermark quality examining device, adjusted watermark medium output device, printing medium quality adjusting metho Pending CN1930868A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330633B (en) * 2007-06-21 2010-06-02 英业达股份有限公司 Equipment and method for detecting image viewfinding device
CN103985079A (en) * 2014-05-21 2014-08-13 南京茵默维电子科技有限公司 Tampering detection method for digital image with invisible watermark
CN101895661B (en) * 2010-01-11 2016-01-27 珠海天威飞马打印耗材有限公司 Consumable chip, consumable container, imaging device and image formation control method thereof
CN112219112A (en) * 2018-06-08 2021-01-12 麦克赛尔新领域株式会社 Printing inspection machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330633B (en) * 2007-06-21 2010-06-02 英业达股份有限公司 Equipment and method for detecting image viewfinding device
CN101895661B (en) * 2010-01-11 2016-01-27 珠海天威飞马打印耗材有限公司 Consumable chip, consumable container, imaging device and image formation control method thereof
CN103985079A (en) * 2014-05-21 2014-08-13 南京茵默维电子科技有限公司 Tampering detection method for digital image with invisible watermark
CN112219112A (en) * 2018-06-08 2021-01-12 麦克赛尔新领域株式会社 Printing inspection machine

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