CN101867672A - Multi-information embedding method and multi-information recognising method - Google Patents
Multi-information embedding method and multi-information recognising method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000007639 printing Methods 0.000 claims abstract description 91
- 238000009826 distribution Methods 0.000 claims abstract description 25
- 238000012937 correction Methods 0.000 claims abstract description 20
- 239000011159 matrix material Substances 0.000 claims description 68
- 230000006870 function Effects 0.000 claims description 63
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003909 pattern recognition Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
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- 238000005516 engineering process Methods 0.000 description 4
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- 230000035807 sensation Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
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- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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Abstract
The present invention relates to a multi-information embedding method and a multi-information recognizing method. The multi-information embedding method is used for embedding at least two of character emergence, forbidden reprography, tracking, automatic transmission, hidden secret document, automatic access and the like as shading in a printing image. The method includes an input step, an embedding step and an output step. In the input step, the additional information data to be embedded is input and the printing image to be printed to a printing media is obtained. In the embedding step, the additional information data to be embedded inputted in the input step is transformed into geometry or physics information embedding code, namely net screen code, having at least one of gray level characteristic, interval characteristic, and distribution characteristic of printing net screen points for mode recognization. Information model set including data information, standard information, correction information and the like is arranged to form a shading to be added in the printing image so as to form a new printing image.
Description
Technical field
The invention belongs to field of information processing, especially a kind of many information are imbedded method and many information identifying methods.
Background technology
In recent years, though printed medium constantly develop to electronization from the paper medium since the paper medium have facility, directly perceived, be convenient to verification and low cost, therefore undeniable paper medium also will exist in the future.
When we will control classified papers such as being printed on literal or image it can not be copied, the reproducibility of its file and reproduction speed just became main development goal.About the technology of exploitation information security function in photocopier, recently, we have proposed the scheme of additional many information on the master copy file that is copied.
As the additional information that is proposed in the scheme, list following content.
(1) literal appears function in one's mind
So-called literal appears function in one's mind, just is meant by having literal and appears the additional background of the shading of function as this printed text in one's mind, and when this printed text was copied, the copy come-up revealed the printed words of " duplicating " or " COPY ".
(2) forbid copy function
What is called is forbidden copy function, just is meant by imbedding on classified papers to forbid the shading that duplicates, thereby classified papers photocopier when being copied is stopped automatically; Or can only run off complete black (in vain) when duplicating thus file reaches the purpose that can't normally duplicate.
(3) tracking function
So-called tracking function, just be meant the shading background of on file, having imbedded tracked information, thereby when this document can be distinguished by scanning, demonstrate this document tracked information such as its printer, date of printing, file content when printing automatically in the process of passing round.
(4) automatic sending function
So-called sending function automatically just is meant by the transmission address with this document to be embedded in the file as shading, thereby when file is read in scanning, can directly file content be sent to the other side.
(5) hidden function of classified papers
The hidden function of so-called classified papers just is meant after will encrypting as the fileinfo of secret content to be embedded in the printed text, has only after input password numbering and just can read, thereby prevent secret content leakage.
(6) automatic read functions
So-called read functions automatically, just be meant that the file content with the needs printing is embedded in the file that is printed as electronic document, in other words exactly digital information is embedded in the analog information, thereby makes file be scanned when reading and directly the form of content with electronic data to be recorded in the computer.
In above-mentioned additional content, for example, in references, (see the 11-509995 communique) about " forbid duplicate ", in classified papers in advance the related content of additional special pattern key element " marking " put down in writing.This " marking " is the key element that can distinguish classified papers and ordinary file.Specifically, refer to use the background of the marks such as line segment of the printing points of black or inclination exactly, so just can judge classified papers or ordinary file according to the color density of figure as document image.
Summary of the invention
Technology in the past just can be embedded in a plurality of additional contents that the front proposed in the printed text, does not also accomplish a plurality of additional informations are appended in the printed text simultaneously.Particularly " floating word function " and other functions that can pick out hard-copy file easily can't be appended in the printed text together.
The present invention in view of these technology facts, provides in same printed text, and added text appears function in one's mind simultaneously, and the many information flush mounting and the method for at least one other aforementioned functional (copy function, tracking function etc. are all multi-functional); Can discern the many information recognition devices and the method for the many information print media that is embedded with many information; And multimedia print media.
A kind of many information is imbedded method and many information identifying methods, be meant a kind of will have that literal appears in one's mind, forbids duplicating, follows the trail of, sends automatically, classified papers are hidden and automatically at least two functions in the read functions imbed method as many information that a shading appends in the printing image simultaneously, this method by input step, imbed step and output step form, its concrete steps are as follows:
(1) input step, the additional information data that input will be imbedded, and obtain the printing image that will be printed onto on the print media;
(2) imbed step, the literal that has that will imbed of front input step 1 input is appeared in one's mind, forbid duplicating, follow the trail of, send automatically that the additional information data of at least two functions in the hiding and automatic read functions of classified papers is transformed into as information imbeds code.It is to have a data message to have comprised by what a plurality of sites were formed that information is imbedded code, reference information, error correction information are constituted the dot pattern group of interior at least a information, thereby and be embedded in the printing image with the form of shading and constitute new printing image;
(3) output step is with the new printing image printing output formation multimedia printed article of above-mentioned formation.
Many information identifying methods, be meant a kind of method that can from the multimedia printed article, read and identify the additional information that is embedded in, this method is made up of image input step, additional information identification step and the information registration step that identifies, and its concrete steps are as follows:
(1) image input step reads multimedia printing image from imageing sensor;
(2) additional information identification step, from the image input step, read in the multimedia printing image, the information of detecting is imbedded the position of code, composition rule according to the dot pattern group who comprises at least a information of forming by a plurality of sites with data message, reference information, error correction information, identify and have literal and appear in one's mind, forbid duplicating, follow the trail of, send automatically that the information of at least two functions in the hiding and automatic read functions of classified papers is imbedded the code value of code;
(3) information registration step records the additional information that identifies at least one memory media in internal memory, hard disk, CD-ROM, the webserver or carries out associative operation.
And described dot pattern group is meant in the distribution character of the interval characteristics of the gamma characteristic that possesses printing screen site, site and site that it is half-tone screen code that the geometric or physical information of the pattern recognition carried out of at least one characteristic is imbedded code.
And described dot pattern group is meant that the dot matrix of data message, the dot matrix of reference information, the dot matrix of error correction information can be printed on the print media simultaneously, also can be printed on respectively on the print media or as the electronic image data to be kept in the memory.
And described dot pattern group is meant that the color of shading can be identical with the printing image, also can be independent of the color of printing image.
And described dot pattern group is meant can be according to the dot matrix that is printed on the data message on the print media simultaneously, and the known relation between the dot matrix of reference information, the dot matrix of error correction information identifies the code value that information is imbedded code; Also can be according to more than one the dot matrix in the dot matrix of the dot matrix of the dot matrix that is kept at the data message in the memory, reference information, error correction information, and the known relation that is printed on more than another between the dot matrix on the print media identifies the code value that information is imbedded code.
And described dot pattern group is meant dot matrix in a given basic recognition scope, and its number that can discern the arrangement of dot matrix is 5*4,5*5, and 5*6,6*6 ..., n*m.
And the dot pattern group is appeared shading in one's mind with literal and is fused to together.
And described information is imbedded code and is meant that duplicating prohibiting function realizes by digitized code.
And described information is imbedded code and is meant that automatic read functions is by being embedded in the printing image of this document with the e-file of the file identical content that is printed.
And the printing precision of the dot matrix of difference in functionality can be identical with accuracy of identification, also can be different.
Below term involved in the present invention is carried out following definition:
Described " pixel " is the least unit of composing images; " site " is that the least unit with composing images is the pairing minimum screen unit of pixel; " point of site " is the least unit that constitutes the site; " printing points " be describe the smallest point of printing precision (1 inch/dpi)." point of site " is made of printing points.
Described " geometric information is imbedded code ", be meant the distribution of its dot pattern, by its different position distribution, different directions distributes, different distribution of shapes, different site sizes, different site numbers distributes and the geometric distribution modes such as centralization and decentralization of printing points are come the dot pattern of recorded information.
Described " physical information is imbedded code " is meant the distribution of its dot pattern, by its different modulating mode, and phase modulation method, the different directions of propagation, different frequency, different mechanical characteristics, different physical distributions such as gray value.
Described " gamma characteristic of screen site " is meant the characteristic of the gray scale homogenization of screen site, and the gross area that promptly constitutes the point of screen site is counted identical characteristics.
Described " different modulation systems " represent that according to the site size screen of its site gray scale is called the amplitude modulation screen, i.e. the AM screen; Represent that according to the site number screen of its site gray scale is called the frequency modulation screen, i.e. the FM screen.Recorded information can be come according to different modulation systems in site for same grayscale.
Dot pattern that constitutes according to the different modulating mode and the dot pattern that is made of a plurality of frequencies, both are equivalent in meaning, and actual dot pattern distribution shape is also identical.The dot pattern that is the AM screen can be said to low-frequency dot pattern, and the dot pattern of FM screen can be said to high-frequency dot pattern.
The dot pattern that the dot pattern that constitutes according to the different modulating mode and point according to a plurality of different gray scales constitute, both are equivalent in meaning, and actual dot pattern spread geometry is also identical.That is, because being concentrated by a plurality of little sites, the dot pattern of AM screen distributes, so the gray value of the site of AM screen is bigger.Otherwise, because the dot pattern of FM screen is by a plurality of point dispersed and distributed, so the gray value of each site of FM screen is less.Therefore, it is the bigger dot pattern of a kind of gray value that the dot pattern of AM screen can be said to, and the dot pattern of FM screen to can be said to be the dot pattern that is made of the less point of a plurality of gray scales.
Effect of the present invention is to imbed method by importing many information of the present invention, can be in printed text have literal appear in one's mind merge in the function shading aforementionedly forbid duplicating, the network point distribution of at least one function in all functions such as tracking.By many information identifying methods of the present invention, can read many information print media of having imbedded many information.And, by many information print media of the present invention, can be in printed text have literal appear in one's mind merge in the function shading aforementionedly forbid duplicating, at least one function in all functions such as tracking.
Description of drawings
The concept map of Fig. 1 many information flush mounting of the present invention.
The concept map of Fig. 2 many information recognition devices of the present invention.
The shading legend that constitutes by repetitions patterns that Fig. 3 uses in the present invention.
Fig. 4 represents that information " 1 " appears the dot pattern legend that in one's mind.
Fig. 5 represents that information " 0 " appears the dot pattern legend that in one's mind.
Fig. 6 represents that information " 0 " appears other dot pattern legends that in one's mind.
Fig. 7 is a sunk type dot pattern legend.
Fig. 8 is information pattern group's a legend.
Dot pattern legend (b) the point sample legend for can duplicate of Fig. 9 (a) for forbidding duplicating.
Figure 10 (a) forbids the dot pattern legend (b) of duplicating for other and is other the point sample legends that can duplicate.
Figure 11 is a file legend of having imbedded a plurality of purpose information.
Figure 12 is the copy legend of file shown in Figure 11.
It is the formation legend of 1 half-tone screen code that Figure 13 counts for the site.
Figure 14 is the application legend of the many information recognition devices of the present invention.
1 input step
2 imbed step
3 output steps
4 image input steps
5 identification steps
6 login step
11 site information " 1 "
12 site information " 0 "
13 information matrixs
14 position references are capable
15 parity check rows
16 information recording status are capable
17 position references row
18 parity column
19 information recording status row
41 position reference sites
42 information sites
51 scannings
52 compounding machines are handled
53 print
54 half-tone screen codes are handled
Embodiment
Below, the execution mode of many information of the present invention being imbedded method and many information identifying methods with reference to accompanying drawing describes.
Fig. 1 imbeds the concept map of method for many information of the present invention.Many information flush mounting of the present invention is meant that at least one the function that literal is appeared in one's mind in the functions such as function and forbidding is duplicated, follows the trail of, sent automatically, confidential information is hidden and read automatically is embedded to device in the printing image simultaneously as shading, has input step 1, imbeds step 2 and output step 3.Traditional device or method, having literal, to appear function in one's mind just can only be that literal appears function in one's mind, having the copy function of forbidding just can only be to forbid copy function, simple function can only be appended in the printing image, and the present invention can append to a plurality of functions in the print media simultaneously by matrix that uses back described information module group and the half-tone screen code with screen characteristic.
Described input step 1, the additional information of object is imbedded in input, and the printing image that reads the information of will imbedding.
The described step 2 of imbedding, the additional information data of imbedding object of front by input step 1 input can be transformed into as information and imbed code, promptly possess at least one characteristic in gamma characteristic, interval characteristics and the distribution character of printing screen site at least and can carry out the information record of geometric or physical distribution of pattern recognition or the half-tone screen code that information is imbedded code.Gray value characteristic described here is though be the same from the different in fact gray values of microcosmic pattern promptly.Because utilized " gamma characteristic of printing screen ", so even different dot pattern (can write down different information) looks it is identical in appearance, this is because the identical principle of gray scale.In addition, utilize the spacing relation of site and neighbour node, promptly the site is more little, and the site is big more at interval, more little " the site interval characteristics " of influence to the half-tone screen code of the printing image of having imbedded information can reduce the influence to printing image (shading has been imbedded additional information)." site interval characteristics " also has following characteristic, when printing precision during less than 1200dpi, by the Ruili criterion as can be known the size of site be easy to be identified by the human eye out, therefore adopt amplitude modulation screen effect relatively good, promptly, if adjusting site spacing makes it to reach the size greater than the site, the network point distribution randomness that is caused by the information of imbedding will seem smaller so.Otherwise, when printing precision during greater than 1200dpi, by the Ruili criterion as can be known the size of site be difficult for being identified by the human eye out, therefore for can more imbed information, adopt frequency modulation screen effect relatively good, promptly, scalable site spacing makes it to be less than the size of site, even the network point distribution random distribution that is caused by the information of imbedding so, because the size of site is difficult for being identified by the human eye out, therefore the network point distribution randomness that is caused by the information of imbedding can not show.In addition, utilize " distribution character of printing screen site ", the printing interference in can suppressing to print by the distribution angle that changes the site.Below, we are elaborated to the printing interference.
So-called printing interference, and the interference pattern that produce overlapping with regard to the pattern that is meant a plurality of rules.Here, we said be different printing interference that cause of line number owing to line number and the printer or the printing machine of dot pattern.
The bar number of supposing parallel lines is L
n, the bar number is respectively L
N1And L
N2Parallel lines in any two printings when overlapping frequency of interfering be P
m, can derive following formula (1).
P
m＝|L
n1-L
n2| (1)
The period T that printing is interfered
m, as shown in Equation 2, be the inverse of printing interference frequencies.
By formula 2 as can be known, do not print interference in the time of making two parallel lines overlapping, the frequency that printing is interfered must be 0.That is, the difference of bar number is more little, and the frequency that printing is interfered is low more, and the cycle that printing is interfered is also long more, and the printing that produce this moment is interfered not obvious more.
If the angle of 2 groups grid is rotated 45 °, we will be suppressed to print the appearance of interference to greatest extent.
In the present embodiment, all use the dot pattern of 45 degree to distribute,, also can suppress to occur in the printing printing interference even the precision of printing machine is very low.
Fig. 2 is the concept map of many information identifying methods of the present invention.Many information identifying methods, be from the multimedia printed article, to read out among Fig. 1 the method for imbedding the additional information that method (additional information being embedded in the printing image with the shading form) imbeds by many information, comprise image input step 4, identification step 5 and login step 6.
Encoded radio by identified half-tone screen code " is forbidden duplicating ", function such as " trackings " will obtain embodiment together with " literal appears in one's mind " function on the printed text of photocopier output step (printer) output.
So-called dot pattern group is meant in the distribution character of the interval characteristics of the gamma characteristic that possesses printing screen site, site and site that it is half-tone screen code that the geometric or physical information of the pattern recognition carried out of at least one characteristic is imbedded code.
So-called dot pattern group is meant that the dot matrix of data message, the dot matrix of reference information, the dot matrix of error correction information can be printed on the print media simultaneously, also can be printed on respectively on the print media or as the electronic image data to be kept in the memory.For example, according to the needs on using, can be with the dot matrix of the data message among the dot pattern group, the dot matrix of error correction information is printed on the printed medium, and the dot matrix of reference information is kept in the medium, when the code value of the dot matrix of recognition data and information, can identify the code value of the dot matrix of data message by the method for reading and saving dot matrix of reference information in medium.Additive method can be analogized.
So-called dot pattern group is meant that the color of shading can be identical with the printing image, also can be independent of the color of printing image.When for example document files was black and white, the dot pattern group also can be a black and white, just the dot pattern group was distributed to the gap of document files.
So-called dot pattern group is meant and can identifies the code value that information is imbedded code according to the known relation between the dot matrix of the dot matrix of the dot matrix that is printed on the data message on the print media simultaneously, reference information, error correction information; Also can be according to the dot matrix that is kept at the data message in the memory, the dot matrix of more than one in the dot matrix of reference information, the dot matrix of error correction information, and the known relation that is printed on more than another between the dot matrix on the print media identifies the code value that information is imbedded code.
So-called dot pattern group is meant dot matrix in a given basic recognition scope, and its number that can discern the arrangement of dot matrix is 5*4,5*5, and 5*6,6*6 ..., n*m.Here, dot matrix is meant in a given basic recognition scope, the scope that optical image sensor once can read, and for example scanner once can read the scope of A4 or A3 size, and talking pen once can only read the scope of diameter 2-4mm size.The dot matrix number that its number that can discern the arrangement of dot matrix is arranged for the dot matrix in above-mentioned scope.
The dot pattern group is appeared shading in one's mind with literal and is fused to together.
So-called information is imbedded code and is meant that duplicating prohibiting function realizes by digitized code.Traditional method realizes by analogy method, the present invention proposes to realize duplicating prohibiting function by the form of code, whether its progressive is to duplicate prohibition flag for bootlegging person being distinguished misknowing, and prevents to duplicate the purpose that prohibition flag is realized bootlegging by destroying.
So-called information is imbedded code and is meant that automatic read functions is by being embedded in the printing image of this document with the e-file of the file identical content that is printed.
The printing precision of the dot matrix of difference in functionality can be identical with accuracy of identification, also can be different.For example, literal appears in one's mind, follows the trail of, and sends automatically, and the hiding and automatic read functions of classified papers reads with the scanner of 300dpi or 600dpi, forbids that the copy function dot matrix reads with 100dpi.
In the present embodiment, constitute shading by repeated arrangement identical shaped little pattern shown in Figure 3.The shading that constitutes by repetitions patterns like this, even use the low precision printer of 100dpi, also can be under people's visual observation, make the shading of imbedding in the printing image not obvious, when being the identical shaped pattern of repeated arrangement, even point itself is more or less big, but can be clearly, utilize such visual characteristic to make shading here just from all it seems also not.So, the printed article that just can prevent to have imbedded additional information has looked inharmonic sensation.And shading shown in Figure 3 only is one of them example only, and in addition we can also adopt the shading that is made of polytype repetitions patterns.
Fig. 4 is that information " 1 " is appeared the dot pattern legend that in one's mind.In the example of Fig. 4, use the printing points of 5 * 5=25 to constitute the screen site that swing is 45 degree.Pattern shown in the Fig. 8 that occurs later is also identical therewith, but by with rectangular dot pattern rotation 45 degree, can suppress above-mentioned printing interference.For the dot pattern of information " 1 ", represent that by its site size the screen of screen site gray scale is called the amplitude modulation screen, i.e. the AM screen; On the other hand, represent that by its site number the method for screen site gray scale is called the frequency modulation screen, i.e. the FM screen.For the site of same grayscale, can come descriptor by different modulation systems.
Dot pattern that is made of the different modulating mode and the dot pattern that is made of a plurality of frequencies, both are equivalent in meaning, and actual dot pattern distribution shape is also identical.The dot pattern that is the AM screen can be said to the low frequency dot pattern, and the dot pattern of FM screen can be said to the high frequency dot pattern.
The dot pattern that the dot pattern that is made of the different modulating mode and the point by a plurality of different gray scales constitute, both are equivalent in meaning, and actual dot pattern spread geometry is also identical.That is, because being concentrated to arrange by a plurality of little sites, the dot pattern of AM screen forms, so the gray value of AM screen is bigger.Otherwise, owing to the dot pattern of FM screen is formed by a plurality of point dispersed arrangement, so the gray value of FM screen is less.Therefore, it is the bigger dot pattern of a kind of gray value that the dot pattern of AM screen can be said to, and the dot pattern of FM screen to can be said to be the dot pattern that is made of the less point of a plurality of gray scales.
Fig. 5 is that information " 0 " is appeared the dot pattern legend that in one's mind.As shown in Figure 5, constitute the screen site that swing is 45 degree by printing points dispersed arrangement with 42 * 3=6.
Fig. 6 is that information " 0 " is appeared other dot pattern legends of in one's mind.As shown in Figure 6, by 12 1 * 2 printing points and 4 site dispersed arrangement being constituted the screen site of class ring-type.
Fig. 7 is a sunk type dot pattern legend.In this legend, by 23 printing points are constituted the screen sites that swing is 45 degree with equal being spaced.
Fig. 8 is a dot pattern legend of half-tone screen code among the present invention.Constitute shading by arranging so repeatedly.In Fig. 8,11 for the site of expression information " 1 ", and 12 are the site of expression information " 0 ".13 for spending the information matrix that forms by 45 sites of 9 * 9 with rectangular arrangement rotation 45, and 14 is that position reference is capable, and 15 is parity check rows, and 16 is that the information recording status is capable, and 17 is the position reference check column, and 18 is parity column, and 16 is information recording status row.In addition, 24,25 and 26 to be respectively the position reference of information matrix 13 bottom-right information matrixs 23 among Fig. 8 (connecting expression according to 2) capable, and parity check rows and information recording status are capable.37,38 and 39 is respectively that the position reference of information matrix 33 (representing according to 2 lines) of information matrix 13 lower lefts among Fig. 8 is capable, and parity check rows and information recording status are capable.
In arrangement pattern shown in Figure 8, each site of information matrix 13 can be expressed as information " 1 " or information " 0 ", and use location reference row 14 or position reference row 17 can be discerned each position, site of this information matrix 13.Because can write down detailed positional information like this, thus the information record amount of information matrix be improved, and identification accuracy also be improved.
When this row of information matrix 13 when maybe the net number of the information " 1 " in these row is even number, the site value of this parity check rows 15 or parity column 18 is " 0 ".Otherwise when this row of information matrix 13 when maybe the net number of the information " 1 " in these row is odd number, the site value of this parity check rows 15 or parity column 18 is " 1 ".By parity check rows 15 or parity column 18 are set like this, verification goes out the mistake owing to the dirty or damaged information record that causes of printing sheets easily, thereby it is corrected.After obtaining correct information by parity check rows 15 or parity column 18, need not to use back said " error correction " just can obtain correct recognition result, improved treatment effeciency like this.
The shading of having imbedded additional information among the present invention is to exist with the printing image blend that originally will print.Therefore, thus might cause the result that the said printing doubling of the image of a part and front of the row or column of information matrix 13 can not recorded information.In this case, the information recording status capable 16 of the row or column correspondence of information matrix 13 or this site of information recording status row 19 can be made as " 0 ", situation in addition is made as " 1 ".So, even the part of information record pattern and the printing doubling of the image also can utilize residual fraction to come recorded information, thereby expand recordable amount of information.For the information of correcting a mistake, former error correction information can be configured in the information matrix 13, in view of the above, even with existing plural mistake also can correct these mistakes really in the delegation.But be to use this error correction information to correct a mistake, need very big amount of calculation, so there is the low shortcoming of treatment effeciency.
The dot pattern legend of (a) of Fig. 9 for forbidding duplicating, (b) dot pattern legend for duplicating.The present invention use can recorded information the dot pattern information of coming recording prohibition to duplicate.Shown in Fig. 9 (a), the information that can recording prohibition duplicate the middle by information site 42 being configured to two position reference sites 41.Shown in (b), by writing down the information that allows duplicating on the site on the middle that information site 42 is configured to two position reference sites 41.
Generally we think and forbid that if there is no the coding that duplicates just can carry out common duplicating, but for possessing the photocopier of forbidding copy function, can duplicate if know file in early days, can come more early the processing of duplicating by stopping the identify forbidden copy function.In the present embodiment, the use dot pattern that can carry out information record writes down the information of duplicating of allowing.
In example shown in Figure 9, the position of information site 42 that also can be by changing the middle prevents to distort.Promptly, if being configured to information site 42 on the site on the middle of two position reference sites 41, we forbid duplicating, the middle that information site 42 is configured to two position reference sites 41 allows to duplicate, at this moment, even want to forbid duplicating but because illegal person forbids that by pollution the method for the mark that duplicates may destroy the realization of forbidding copy function.But, as shown in Figure 9,, forbid that the mark that duplicates also can be identified as and forbid duplicating even pollute this moment if the middle that we are configured to two position reference sites 41 with information site 42 forbids duplicating.
As shown in Figure 9, by with the site according to diverse location, geometry aligning methods such as different directions arrangement can write down to forbid duplicating or allow and duplicate.By the phase modulated of information site, also can write down to forbid duplicating or allow and duplicate.
(a) of Figure 10 other dot pattern legends for forbidding duplicating are (b) for allowing to duplicate other dot pattern legends.Shown in Figure 10 (a), the information site is configured in the information that can recording prohibition duplicate the middle of the position reference site 41 of two 1 * 2=2.Shown in Figure 10 (b), by site on the middle that information site 42 is configured to two position reference sites 41 respectively or next site on write down the information of duplicating of allowing.
The dot pattern of forbidding the dot pattern that duplicates and allowing to duplicate shown in Figure 10 is the centralization and decentralization by the site, different site sizes, and different geometry arrangement modes such as site number write down that to forbid duplicating still be to allow to duplicate.And by different modulation systems, different frequencies, different physical configuration methods such as site gray value also can write down to forbid duplicating or allow and duplicate.
Figure 11 is a file legend of having imbedded a plurality of purpose information, and Figure 12 is the copy legend of file shown in Figure 11.As shown in figure 11, under this enforcement state, owing to adopt the method for arranging identical shaped little pattern repeatedly, so even under the resolution of 100dpi precision, observe, the point that constitutes shading can be not clearly yet, and then the printing image can not given inharmonic sensation yet.In the said in front shading, write down and had the information of appearing function in one's mind, so when duplicating the file that constitutes by this shading, can appear the printed words (expression as shown in figure 12) of " COPY " on the copy of this document in one's mind.
When imbedding bulk information, also little site that can all shapes are identical constitutes shading as the site (promptly utilizing all sites according to the precision of printing equipment) of come-up literal.
Foregoing half-tone screen code only is one of them example only, and the present invention can also adopt polytype half-tone screen code.For example, other constituted modes of half-tone screen code shown in Figure 13.This example item, the number of utilizing point more less, the site size is more little, the result who imbeds is to the more little printing screen characteristic of printing image influence, not only can use the distribution datum mark simultaneously in information sets, can also distributing by dual-purpose, to constitute that the site counts be many bits half-tone screen code of 19 systems to datum mark.
In Figure 13,1301 is information point, 1302 be can distributed intelligence point 13 the zone.Here can be by information point 13 be aligned to recorded information on the different geometric positions.For example, the some distribution of establishing a site of Figure 13 (is used the distribution mode of (a) expression.Be many bit values " 0 " down together), the point of site b is distributed as many bit values " 1 ", the point of site c is distributed as many bit values " 2 ", the point of site d is distributed as many bit values " 3 ", the point of site e is distributed as many bit values " 4 ", and the point of site f is distributed as many bit values " 5 ", and the point of site g is distributed as many bit values " 6 ", the point of site h is distributed as many bit values " 7 ", and the point of site i is distributed as many bit values " 8 ".As can be known by information point being distributed to different positions, can constitute net number and be 1 16 systems or many bits half-tone screen code of 32 systems with reference to Figure 13.
Half-tone screen code a, b among Figure 13, c, d, e, f, g, h, i can regard the physics dot pattern that the some transmitting signal by the modulation of the out of phase of information point 13 constitutes as.Also can regard simultaneously the dot pattern that constitutes by different physics centers of gravity as.
As shown in figure 14, can be set up in parallel carrying out the identification division of half-tone screen code processing and the duplicating treatment loop 52 before the photocopier in many information recognition devices among the present invention.As shown in figure 14, scanner loop 51 was connected with former duplicating treatment loop 52, and then this duplicating treatment loop 52 is linked to each other with printer loop 53.Half-tone screen code treatment loop 54 and duplicating treatment loop 52 are set up in parallel, and then scanner loop 51 and printer loop 53 are connected on this half-tone screen code treatment loop 54.By such configuration, not only can the processing before the photocopier not exerted an influence, also make photocopier possess the half-tone screen code processing capacity simultaneously.
Claims (11)
1. information more than one kind is imbedded method and many information identifying methods, be to have literal to appear in one's mind, forbid duplicating, follow the trail of, send automatically, classified papers are hidden and automatically at least two functions in the read functions imbed method as many information that a shading appends in the printing image simultaneously, it is characterized in that: this method by input step, imbed step and output step form, its concrete steps are as follows:
(1) input step, the additional information data that input will be imbedded, and obtain the printing image that will be printed onto on the print media;
(2) imbed step, the literal that has that will imbed of front input step input is appeared in one's mind, forbid duplicating, follow the trail of, send automatically that the additional information data of at least two functions in the hiding and automatic read functions of classified papers is transformed into as information imbeds code.Information is imbedded code and is constituted with the dot pattern group who has comprised at least a information of being made up of a plurality of sites with data message, reference information, error correction information, thereby and be embedded in the printing image with the form of shading and constitute new printing image;
(3) output step is with the new printing image printing output formation multimedia printed article of above-mentioned formation.
2. many information according to claim 1 are imbedded method and many information identifying methods, and its recognition methods is made up of image input step, additional information identification step and the information registration step that identifies, and its concrete steps are as follows:
(1) image input step reads multimedia printing image from imageing sensor;
(2) additional information identification step, from the image input step, read in the multimedia printing image, the information of detecting is imbedded the position of code, has a data message according to comprising by what a plurality of sites were formed, reference information, error correction information be at the dot pattern group's of interior at least a information composition rule, identifies to have literal and appear in one's mind, forbids duplicating, following the trail of, automatically send, the information of at least two functions in the hiding and automatic read functions of classified papers is imbedded the code value of code;
(3) information registration step records the additional information that identifies at least one memory media in internal memory, hard disk, CD-ROM, the webserver or carries out associative operation.
3. many information according to claim 1 are imbedded method and many information identifying methods, it is characterized in that the dot pattern group is meant in the distribution character of the interval characteristics of the gamma characteristic that possesses printing screen site, site and site that it is half-tone screen code that the geometric or physical information of the pattern recognition carried out of at least one characteristic is imbedded code.
4. many information according to claim 1 are imbedded method and many information identifying methods, it is characterized in that, described dot pattern group is meant, the dot matrix of the dot matrix of data message, the dot matrix of reference information, error correction information can be printed on the print media simultaneously, also can be printed on respectively on the print media or as the electronic image data to be kept in the memory.
5. according to claim 1,2 described many information are imbedded method and many information identifying methods, and the described shading that is made of the dot pattern group is characterized by: the color of shading can be identical with the printing image, also can be independent of the color of printing image.
6. according to claim 2,4 described many information are imbedded method and many information identifying methods, described dot pattern group's recognition methods is characterized by: can be according to the dot matrix that is printed on the data message on the print media simultaneously, and the known relation between the dot matrix of reference information, the dot matrix of error correction information identifies the code value that information is imbedded code; Also can be according to more than one the dot matrix in the dot matrix of the dot matrix of the dot matrix that is kept at the data message in the memory, reference information, error correction information, and the known relation that is printed on more than another between the dot matrix on the print media identifies the code value that information is imbedded code.
7. according to claim 1,2 described many information are imbedded method and many information identifying methods, and its dot pattern group character is: dot matrix is in a given basic recognition scope, and its number that can discern the arrangement of dot matrix is 5*4,5*5, and 5*6,6*6 ..., n*m.
8. according to claim 1,2 described many information are imbedded method and many information identifying methods, and its dot pattern group is appeared shading in one's mind with literal and is fused to together.
9. according to claim 1,2 described many information are imbedded method and many information identifying methods, and its information is imbedded being characterized as of code: duplicate prohibiting function and realize by digitized code.
10. according to claim 1,2 described many information are imbedded method and many information identifying methods, and read functions is by being embedded in the printing image of this document with the e-file of the file identical content that is printed automatically.
11. according to claim 1,2 described many information are imbedded method and many information identifying methods, the printing precision of the dot matrix of its difference in functionality can be identical with accuracy of identification, also can be different.
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| JP2009076576A JP2010232835A (en) | 2009-03-26 | 2009-03-26 | Multi-information embedding device and method, multi-information reading device and method, and multi-information printing medium |
| JP2009-076576 | 2009-03-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890787A (en) * | 2011-07-21 | 2013-01-23 | 顾泽苍 | Constituting method of novel two-dimensional bar code |
| CN102887003A (en) * | 2011-07-21 | 2013-01-23 | 天津阿波罗电子有限公司 | Novel laser beam marking method of two-dimensional bar code |
| CN103312914A (en) * | 2012-03-14 | 2013-09-18 | 天津阿波罗电子有限公司 | Implementation method of copy forbidding function |
| CN103496263A (en) * | 2013-08-16 | 2014-01-08 | 东莞市铭丰包装品制造有限公司 | Printing dot code generation method and image printing technology using printing dot code generation method |
| CN106803118A (en) * | 2016-12-30 | 2017-06-06 | 广东壮丽彩印股份有限公司 | Anti-counterfeiting mark and recognition methods based on stealthy private mark technology |
| CN113835647A (en) * | 2021-09-27 | 2021-12-24 | 吉林省吉时宇飞电子信息工程有限责任公司 | Method for realizing anti-copying readable dot matrix graphic digital watermark |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5241746B2 (en) * | 2010-01-29 | 2013-07-17 | キヤノン株式会社 | Apparatus capable of reading a plurality of originals, its control method, and program |
| CN104751342B (en) * | 2015-04-21 | 2019-01-11 | 张川 | It is a kind of for tracing the merchandise news decoding method of commodity |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877559A (en) * | 2005-06-10 | 2006-12-13 | 富士施乐株式会社 | Image generating apparatus, image forming apparatus, information processing apparatus, printing medium and method |
| CN101101631A (en) * | 2007-07-02 | 2008-01-09 | 天津市阿波罗信息技术有限公司 | Multimedia printing system realization method for multi-resolution printer |
| CN101159806A (en) * | 2007-11-09 | 2008-04-09 | 天津市阿波罗信息技术有限公司 | Anti-false processing method of embedding information at the edge of floating letters |
| JP2009049657A (en) * | 2007-08-17 | 2009-03-05 | Ricoh Co Ltd | Image processing apparatus, image processing method, image processing program and recording medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08265551A (en) * | 1995-03-20 | 1996-10-11 | Fujitsu Ltd | Facsimile information extraction processing method and facsimile equipment |
| JP3728052B2 (en) * | 1997-04-24 | 2005-12-21 | キヤノン株式会社 | Image processing apparatus and method, and storage medium |
| JP2000358153A (en) * | 1999-06-15 | 2000-12-26 | Canon Inc | Picture processor and picture processing method |
| CN100448260C (en) * | 2003-05-28 | 2008-12-31 | 冲电气工业株式会社 | Watermark information embedding device, image processing device, watermark information embedding method, and image processing method |
| JP2005148393A (en) * | 2003-11-14 | 2005-06-09 | Ricoh Co Ltd | Image forming apparatus |
| JP4512197B2 (en) * | 2005-11-10 | 2010-07-28 | 株式会社日立製作所 | Watermark data embedding method, apparatus, program, and system by area division |
| JP4732382B2 (en) * | 2007-02-21 | 2011-07-27 | 株式会社沖データ | Printing device |
| JP5004828B2 (en) * | 2007-03-19 | 2012-08-22 | 株式会社リコー | Image processing apparatus, image processing method, program, and recording medium |
-
2009
- 2009-03-26 JP JP2009076576A patent/JP2010232835A/en active Pending
-
2010
- 2010-03-26 CN CN201010147403.0A patent/CN101867672B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1877559A (en) * | 2005-06-10 | 2006-12-13 | 富士施乐株式会社 | Image generating apparatus, image forming apparatus, information processing apparatus, printing medium and method |
| CN101101631A (en) * | 2007-07-02 | 2008-01-09 | 天津市阿波罗信息技术有限公司 | Multimedia printing system realization method for multi-resolution printer |
| JP2009049657A (en) * | 2007-08-17 | 2009-03-05 | Ricoh Co Ltd | Image processing apparatus, image processing method, image processing program and recording medium |
| CN101159806A (en) * | 2007-11-09 | 2008-04-09 | 天津市阿波罗信息技术有限公司 | Anti-false processing method of embedding information at the edge of floating letters |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890787A (en) * | 2011-07-21 | 2013-01-23 | 顾泽苍 | Constituting method of novel two-dimensional bar code |
| CN102887003A (en) * | 2011-07-21 | 2013-01-23 | 天津阿波罗电子有限公司 | Novel laser beam marking method of two-dimensional bar code |
| CN102887003B (en) * | 2011-07-21 | 2017-09-05 | 天津阿波罗电子有限公司 | A kind of laser beam marking method of New Two Dimensional bar code |
| CN102890787B (en) * | 2011-07-21 | 2017-09-15 | 顾泽苍 | A kind of constructive method of two-dimensional bar code |
| CN103312914A (en) * | 2012-03-14 | 2013-09-18 | 天津阿波罗电子有限公司 | Implementation method of copy forbidding function |
| CN103312914B (en) * | 2012-03-14 | 2019-04-23 | 天津阿波罗电子有限公司 | A kind of implementation method for forbidding copy function |
| CN103496263A (en) * | 2013-08-16 | 2014-01-08 | 东莞市铭丰包装品制造有限公司 | Printing dot code generation method and image printing technology using printing dot code generation method |
| CN103496263B (en) * | 2013-08-16 | 2015-12-23 | 东莞市铭丰包装品制造有限公司 | A kind of printing net-point code generating method and apply its image printing technique |
| CN106803118A (en) * | 2016-12-30 | 2017-06-06 | 广东壮丽彩印股份有限公司 | Anti-counterfeiting mark and recognition methods based on stealthy private mark technology |
| CN113835647A (en) * | 2021-09-27 | 2021-12-24 | 吉林省吉时宇飞电子信息工程有限责任公司 | Method for realizing anti-copying readable dot matrix graphic digital watermark |
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|---|---|
| JP2010232835A (en) | 2010-10-14 |
| CN101867672B (en) | 2016-04-06 |
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