CN101127089B - Implement method for embedding large amount of information on printing media - Google Patents
Implement method for embedding large amount of information on printing media Download PDFInfo
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- CN101127089B CN101127089B CN 200710057798 CN200710057798A CN101127089B CN 101127089 B CN101127089 B CN 101127089B CN 200710057798 CN200710057798 CN 200710057798 CN 200710057798 A CN200710057798 A CN 200710057798A CN 101127089 B CN101127089 B CN 101127089B
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Abstract
The utility model relates a new implementation method for embedding large amount of information into the print media, belonging to the information processing field. The utility model provides a new composing method for marking screen coding with self-location function aiming to the information embedding method of print media. The novel marking screen coding adopts various geometry distribution comprising the lattice point displacement, the lattice point direction and the lattice point shape to record information directly, or various physics distribution comprising the phase modulation of two-dimensional spatial image and the propagation direction of lattice points to record information directly, and the segmentation method of the screen lattice points. The utility model has the advantages of uniform gray level of the lattice points and small size of lattice points, and is beneficial for code identification, besides, the influence on the image quality after information embedding is small and the information capacity is large, in addition, the utility model can rotate arbitrarily within 360 degrees, and is suitable for the information embedding of all printing images.
Description
Technical field
The invention belongs to field of information processing, the especially a kind of implementation method that can imbed the system of bulk information on print media.
Background technology
In recent years, computer technology develops rapidly, as the media of data message record, by initial magnetic medium Media Development to light medium media, memory medium etc.But the media of common paper as the mass data storage are but seldom mentioned.
In addition, as a kind of easy method of Supermarket, the motion that proposed the one dimension bar code by U.S. Hough university in 1932 is widely used so far at first.The latter stage eighties, should be able to record the demand of more information for satisfying the industries such as jewel, semiconductor, pharmacy, mechanical component, developed Code49 by American I ntermec company in 1989, from then on two-dimensional bar code has been born.DataMatrix after this, MaxiCode, ArrayTag etc. come on stage in succession, have also developed CPCode in Japan, QRCode, and be put into international standard.
But two-dimensional bar code is to generate on the basis of bar code, therefore be difficult to jump out the limitation of bar code, the motion of at first all two-dimensional bar codes is still adopted black region is represented message code " 1 ", white portion represents message code " 0 ", and do not consider to utilize graphic change to represent that directly a complete message code is (as 0～9, A～F) causes tediously long that information represents.Secondly, two-dimensional bar code equally must occur separately with bar code, has taken the space, and has been easy to be replicated poor stability.Moreover the correct deciphering that paper pollutes two-dimensional bar code is fatal problem.
Along with printing device, the scanning device precision improves constantly, and the hardware device condition ratio when before 15 years, two-dimensional bar code occurs has had very great development, and the high-precision printer of 1200dpi, 2400dpi, scanner are customary.So in the banking and insurance business field, proposed to carry out mass data record and the meticulousr requirement of lettering on paper.Particularly in Japanese financial industry, the data of computing machine regulation legally must be printed on paper takes care of.At present because not storing data on paper, so also need to back up with hard disk.These information no longer back up with hard disk if directly store on paper, will be safer, convenient.Such demand obviously realizes it being more difficult with 2D bar code technology.
Current, along with popularizing of duplicating machine, printed text is by bootlegging, and the personal information losing issue has become the social concern that must solve.But to the how encryption and decryption as e-file of the file of printing, and add in file and anti-ly duplicate code in case illegal the duplicating received sizable concern.Be indeterminable with two-dimensional bar code because of above-mentioned problem for such demand, people urgently wish to obtain a method that the content of printing can be represented with the form of data code.
Have again, method with the identification of OCR word, with the Word message reading data storehouse that is printed on paper, such gimmick obtains sizable concern and expectation for the moment, yet in developing for a long time, it has been recognized that more than the quantity of Chinese character, will reach 100% degree as the precision of OCR word identification and can realize hardly, so usage range is very little.
Recently, particularly very prevailing as the research of the Digital Watermarking Theory of core take the researcher of the U.S., there is a large amount of papers to be published.But the overwhelming majority is for solving anti-copying or anti-tamper etc. safety problem, is only to imbed specific mark or figure for a certain image.As the representational achievement of Japan, " utilize digital watermarking to realize the tamper Detection technology of printed text " and be published [the open 2003-209676 of special permission], be not discussed in printed matter and a large amount of computer data codes are directly imbedded, moreover this technical finesse coloured image is just more difficult.The Steganography technology of " the imbedding invisible data message in printing images " that takes a step forward than digital watermark technology just is published [the open 2004-96405 of special permission].But basically similar with digital watermark technology, owing to being that therefore, the quantity of information of imbedding is fewer, can only imbed now 12 line number words in the processing of printing before screen.
Recently, in day inventor wood and Teng Jing proposed about " the personally identifiable information system that is formed by personally identifiable information's generating apparatus and personally identifiable information's reading device " [patent publication No.: the open 2000-79782 of special permission].Namely for the background of my photo such as personal identity card, with " specific ID " of different screen forms as me.This on the purpose of solution and the aspect such as the gimmick that realizes with to record and read the mass data information gap at paper very far away.
By being entitled as that famous O commercial firm of Japanese Optical Co., Ltd delivers: " what be used for the foreign language session can the utilization of Words To may な speech コ one De pays I printed article (the open 2002-82601 of special permission) with the printed matter [Wai Guo Language of sound code] ".This patent proposes in the word of printing the first language, sound code with the pronunciation of the second language of this word, be transformed into the similar miniature two-dimensional bar code that is called as DotCode, and be printed on word near, the pronunciation of the second language of this word can be played back when the method with optics reads DotCode.At first, need take very large space as the printing of the DotCode code of the irregular distribution of recording voice, random dot matrix maldistribution the quality of printed picture, and DotCode needs common location dot matrix, reading of any direction is more difficult.
Above-mentioned patent does not all relate to solving imbeds information in a large number on print media, and does not reduce the problem of printing quality.
Summary of the invention
First purpose of the present invention is for imbedding in a large number information on print media, solves printing equipments such as printer integral machine at low resolution when the information of carrying out the shading mode is imbedded, and the dot matrix number of screen site can not too large problem.Otherwise affect the quality of printing images.
Second purpose of the present invention is for imbedding in a large number information on print media, can be under arbitrarily angled, and constructive method and the information of the identification half-tone screen code of identification are imbedded method quickly and accurately.
The present invention is directed to above-mentioned purpose solves its technical matters and takes following technical scheme to realize:
the implementation method that can imbed the system of bulk information on print media that this is new, it is characterized in that: this system has by intercepting and capturing printing images unit 100, data-reading unit 200, code conversion unit 300, information imbeds unit 400 and the output for printing unit 500 forms, intercept and capture printing images unit 100, intercept and capture the word that comprises that will print by the driver of printer, mark, figure, image be in interior printable data, or directly read and comprise word, mark, and figure, image is in interior printable data, data-reading unit 200 reads the word that comprises that will imbed, mark, and figure, image can be by the data of computer generation representation at interior, code conversion unit (300), with above-mentioned read will imbed comprise word, mark, figure, image distributes in interior can being comprised with diverse location by the data transformation one-tenth of computer generation representation, different directions distributes, many bit informations of expression code numerical value that at least a geometry in difformity is distributed in distributes, and considered the dot matrix of the identification half-tone screen code of printing net screen characteristics, or with the different distributions of the phase-modulation in two-dimensional space, the different distributions of the direction of propagation in two-dimensional space and the numerical value that represents many bit informations code are interior at least a physical, and considered the printing net screen characteristics, the dot matrix of identification half-tone screen code consists of optical readable screen site fotmat code, information is imbedded unit (400), optical readable screen site fotmat code after above-mentioned data transformation is arranged at regular intervals the printing images of the shading form that two-dimensional lattice distributes, overlap with intercepting and capturing the printing images that the printing images unit intercepts again, consist of the printing images of the information of imbedding, printing images is avoided the color that optical readable screen site fotmat code uses automatically, or nearby automatically avoids at optical readable screen site fotmat code the color that optical readable screen site fotmat code uses, the printing images printout of information will be imbedded in the output for printing unit (500), or output plate making data are for common printed machine plate making.
And the characteristic of screen is printed in above-mentioned consideration, or refers to will form according to Rayleigh criterion the minimized in size of the site of printing screen; When the ratio of precision of the printing equipment that comprises the printer integral machine during low for example 600dpi, the site dot matrix of identification half-tone screen code is divided into the means of a plurality of screens site, is consisted of the means of more than one half-tone screen code message code numerical value by a plurality of screens sites; When the higher for example 2400dpi of ratio of precision of the printing equipment that comprises the printer integral machine, be the means that a plurality of identification half-tone screen codes are merged into the identification half-tone screen code of a screen site with a plurality of message codes.
And a plurality of screens sites consists of each networking screen coding of more than one half-tone screen code message code numerical value, or the form means of the half-tone screen code message code of the screen site in representing to belong to mutually on the same group with the difference of the orientation of screen site.
And the characteristic of above-mentioned consideration printing screen, or refer to comprise the dot matrix number that adopts identical screen site consists of the means of printing screen of the poster edge of even gray scale; The gray-scale value of screen site minimizes, i.e. the minimized means of site dot matrix number of identification half-tone screen code; The spacing of the screen arranged evenly site of the identification half-tone screen code of expression screen site greater than the means of the size of self size of site in interior one or more or whole means.
And, the code of the optical readable screen site form of the structural property of above-mentioned consideration optical readable code is the constructive method of identification half-tone screen code, or the dot matrix number that comprises the site of identification half-tone screen code is identical means, the number means different from locative location dot matrix number of dot matrix of expression code information, locative location dot matrix are to be in means on given fixed position at interior one or more or whole geometric form meanses.
And, the code of the optical readable screen site form of the structural property of above-mentioned consideration optical readable code is the constructive method of identification half-tone screen code, or comprise that the diverse location with the dot matrix of identification half-tone screen code distributes, different directions distributes, and difformity distributes and represents that different message codes are at interior one or more or whole geometric form meanses.
And, the code of the optical readable screen site form of the structural property of above-mentioned consideration optical readable code is the constructive method of identification half-tone screen code, or comprise the phase-modulation of dot matrix in two-dimensional space of identification half-tone screen code, or the different distributions of the direction of propagation in two-dimensional space and the numerical value that represents message code are at interior one or more or whole physical form meanses.
Description of drawings
Fig. 1 is a kind of schematic diagram that can imbed the system of bulk information on print media of the present invention;
Fig. 2 is that screen site dot matrix number that the present invention proposes is the schematic diagram of 3 identification half-tone screen code;
Fig. 3 carries out the dot matrix of screen site the schematic diagram of space phase modulation;
Fig. 4 is the schematic diagram that the identification half-tone screen code can be cut apart;
The two-dimensional bar code traditionally of Fig. 5 design sketch overlapping with printing images of lining up;
Fig. 6 is the overlapping design sketch of the identification half-tone screen code that provides of present embodiment and printing images;
Fig. 7 consists of by a plurality of identification half-tone screen codes the schematic diagram that a batch total is calculated machine data;
Fig. 8 is that the dot matrix number of screen site is the schematic diagram of another example of 3 identification half-tone screen code;
Fig. 9 is that screen site dot matrix number that the present invention proposes is the schematic diagram of 2 identification half-tone screen code;
Figure 10 is that the screen dot matrix can be with the schematic diagram of the physical arrangement recorded information of the different directions of propagation;
Figure 11 is that this screen site dot matrix number is that 2 identification half-tone screen code consists of the schematic diagram that a batch total is calculated machine data;
Figure 12 is that screen site dot matrix number that the present invention proposes is the schematic diagram of 4 identification half-tone screen code;
Figure 13 is the schematic diagram that identification half-tone screen code information is imbedded;
In accompanying drawing:
The 100th, intercept and capture the printed data elementary area;
The 200th, data-reading unit;
The 300th, the code conversion unit;
The 400th, information is imbedded the unit;
The 500th, the output for printing unit
Dot matrix is located in 201 expressions;
Dot matrix is located in 202 expressions;
203 expression information dot matrix;
301 is x=0, y=0;
302 is x=-3, y=3;
303 is x=0, y=3;
304 is x=3, y=3;
305 is x=-0, y=5;
306 is x=-3, y=5;
307 is x=3, y=5;
701 expression codes " 0 ";
702 expression codes " 2 ";
703 expression codes " 1 ";
704 expression codes " 3 ";
Dot matrix is located in 801 expressions;
Dot matrix is located in 802 expressions;
803 expression information dot matrix;
901 expression information dot matrix;
902 expression information dot matrix;
1001 expression information dot matrix;
1002 expression information dot matrix;
1101 expression message codes " 0 ";
1102 expression message codes " 1 ";
1103 expression message codes " 2 ";
1104 expression message codes " 0 ";
1105 expression message codes " 1 ";
1106 expression message codes " 2 ";
The location dot matrix of 1107 expression directions;
The location dot matrix of 1108 expression directions;
The location dot matrix of 1109 expression directions;
1201 expression message codes " 0 ";
1202 expression message codes " 1 ";
1203 expression message codes " 2 ";
1204 expression message codes " 3 ";
1205 expression message codes " 4 ";
1206 expression message codes " 5 ";
1207 expression message codes " 6 ";
1208 expression message codes " 7 ";
The printing images that 1301 expressions are intercepted and captured;
The printing images of 1302 expression shading forms;
The printing images of bulk information has been imbedded in 1303 expressions;
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described, but embodiment of the present invention is illustrative, rather than determinate.
The present invention is at first for the positional information that comprises printing images, and sequence information, content information propose the New Type of Code of description method in the information of the interior printing images described feature.
Below in the present embodiment, described pixel is the least unit of composing images, the site is the corresponding screen least unit of pixel with the least unit of composing images, and the dot matrix number of site is the sum of point that consists of the dot matrix least unit of arranging by certain rule of site.The least unit " printing points " that point can be printed by printing equipment forms, but half-tone screen code is the screen site of recall info.
The definition of the Novel sign half-tone screen code described in the present invention: independently existing with certain code form, is a kind of code form of imbedding for the printing images information of carrying out that consists of the least unit of screen.
The identification half-tone screen code is different from bar shaped half-tone screen code and two-dimentional half-tone screen code, the former is a self-existent code, bar code or two-dimensional bar codes as a large amount of uses at present all belong to the identification code, as long as this code is identified, just can carry out an operation.And the latter just carries out an operation after whole image or whole page printed matter are identified.Both are very approaching again aspect a lot, and the identification half-tone screen code also can be the same with bar shaped half-tone screen code and two-dimentional half-tone screen code, can be used for imbedding for the bulk information of printed medium.
The important sign that the identification half-tone screen code is different from two-dimensional bar code is: the identification half-tone screen code is the node record information of printing screen, can be printed on printing images, to reach with image co-registration together, the effect that namely information of carrying out is imbedded under the prerequisite that the quality of image can not reduce.The identification half-tone screen code has the effect that can consist of the printing screen.
The definition of location dot matrix, with a kind of spread pattern that is different from the information dot matrix, when distortion appearred in print media, the dot matrix that is printed on each lattice position of identification half-tone screen code on print media as quantification was called the location dot matrix.
Fig. 2 is that to adopt the dot matrix number be the example of 3 identification half-tone screen code to the present embodiment.As shown in Figure 2: 201 and 202 dot matrix is the location dot matrix.203 is the information dot matrix.In Fig. 2, the network point distribution of a form can represent code " 0 ", the network point distribution of b form can represent code " 1 ", the network point distribution of c form can represent code " 2 ", the network point distribution of D-shaped formula can represent code " 3 ", the network point distribution of e form can represent code " 4 ", and f and g represent two special codes.The change of the position relationship of information dot matrix 203 and location dot matrix, determine the different code value of message code, that is to say that the different geometric arrangement that comprises the position of the dot matrix by changing the screen site can represent the code value that the identification half-tone screen code is different.
Information dot matrix 203 only has one as can be seen from Figure 2, and the location dot matrix is two, information dot matrix and anchor point array area can be told in quantity.In addition, from position relationship, two location dot matrix are arranged in parallel, and have wider distance, and in the code of 0-4 is namely schemed a-e any two kinds of codes, no matter from which direction get on, identical shaped phenomenon can not occur and exist, the problem of mistake identification therefore can not occur.
For example Fig. 3 is such, the dot matrix number that the present embodiment proposes is the example of 3 identification half-tone screen code, also can regard as and comprise the method that adopts the dot matrix with the screen site to carry out the space phase modulation, according to the space bit phase change of the dot matrix of screen site in interior physical method logger computer information.As shown in Figure 3,301 is x=0, y=0; 302 is x=-3, y=3; 303 is x=0, y=3; 304 is x=3, y=3; 305 is x=-0, y=5; 306 is x=-3, y=5; 307 is x=3, y=5.
The identification half-tone screen code that Fig. 2 provides can be regarded as shown in Figure 4: a large identification half-tone screen code is divided into the result after several little identification half-tone screen codes.When the printing equipment ratio of precision higher, when for example resolution is 2400dpi, can adopt the large identification half-tone screen code code in Fig. 4 left side, site as the shading screen, although the dot matrix number of site is many, but because printing precision is higher, so the size of site is smaller, little on the impact of printing images.When the printing equipment ratio of precision is low, when for example resolution is 600dpi, can adopt the little identification half-tone screen code code in Fig. 4 the right, site as the shading screen, because the information of little identification half-tone screen code code record is fewer, can consider to consist of a message code value by a plurality of little identification half-tone screen code codes.
Realization can soniferous books as a kind of form of multimedia printing, adopt traditionally as shown in Figure 5 invisible 2D bar code technology, are about to very little two-dimensional bar code and line up overlapping with printing images.The method does not consider to print the effect of screen, even the therefore form of peer code, the quality of the effect printing images after information is imbedded seriously is affected.
The optical readable code that the present embodiment adopts is the identification half-tone screen code, as shown in Figure 6: be the least unit of printing screen because of the identification half-tone screen code, the identification half-tone screen code is lined up and is consisted of the homogeneous gray-scale value, and has again the minimized shading of gray-scale value, this homogeneous gray-scale value have again the minimized shading of gray-scale value and an overlapping effect that realizes that information is imbedded of printing images, do not cause print image quality to be damaged simultaneously.
Fig. 7 consists of by a plurality of identification half-tone screen codes as shown in Figure 2 the example that a batch total is calculated machine data.As shown in Figure 7: identification half-tone screen code 701 and 702 location dot matrix are vertically, and identification half-tone screen code 703 and 704 location dot matrix are horizontal.701 half-tone screen codes represent code " 0 ", and 703 half-tone screen codes represent code " 1 ", and 702 half-tone screen codes represent code " 2 ", and 704 half-tone screen codes represent code " 3 ".Identification half-tone screen code 701,702,702,704 can represent 4 independently message codes.In Fig. 2, each identification half-tone screen code can represent 5 different codes, therefore 625 different codes of 4 code one-tenth capable of being combined.When consisting of a batch total calculation machine data by a plurality of identification half-tone screen codes, can be by the arrangement of the different directions of each identification half-tone screen code in group, realization comprises the determining of identification half-tone screen code direction, and the identification half-tone screen code that belongs in this group fixes on interior geometry of space or physical judgement really.In addition, can prove, by the arrangement of N identification half-tone screen code, can record the data of M byte, wherein N and M are enough large integer, therefore adopt the identification half-tone screen code can imbed a large amount of information equally in printed medium.
Fig. 8 is that the dot matrix number of the present embodiment screen site of proposing is another example of 3 identification half-tone screen code.As shown in Figure 8: 801 and 802 dot matrix is the location dot matrix.803 is the information dot matrix, network point distribution as a form in Fig. 8 can represent code " 0 ", the network point distribution of b form can represent code " 1 ", the network point distribution of c form can represent code " 2 ", the network point distribution of D-shaped formula can represent code " 3 ", the network point distribution of e form can represent code " 4 ", and the network point distribution of f form can represent code " 5 ", and the network point distribution of g form can represent code " 6 ".Compare with Fig. 2, the recordable quantity of information of this code form has increased the degree of a times nearly, and, 4 independently the identification half-tone screen code can be combined into 2401 different codes.Shortcoming is when allowing imageing sensor 360 degree rotation, correctly identifies the identification half-tone screen code of this form, and the direction of anchor point that need to be by the identification half-tone screen code around identification just can obtain correct result.
Fig. 9 is that screen site dot matrix number that the present embodiment proposes is the example of 2 identification half-tone screen code.As shown in Figure 9: the geometric arrangement record information that comprises different directions of the dot matrix by 901 and 902.Network point distribution as a form in Fig. 9 can represent code " 0 ", and the network point distribution of b form can represent code " 1 ", and the network point distribution of c form can represent code " 2 ", and the network point distribution of D-shaped formula can represent the location dot matrix of direction.Compare with Fig. 2, the site dot matrix number of this code form is only 2, and the site gray-scale value has reduced one-level, the quality of the printing images after can raising information imbedding.Shortcoming is that recordable quantity of information has reduced one times.
The dot matrix number of Fig. 9 is 2 identification half-tone screen code, also can regard as shown in figure 10 be from the physical arrangement recorded information that comprises the different directions of propagation of 1002 screen dot matrix by 1001.The network point distribution direction of propagation as a form in Figure 10 is d
1, the network point distribution direction of propagation of b form is d
2, the network point distribution direction of propagation of c form is d
3, the network point distribution direction of propagation of D-shaped formula is d4.
Figure 11 is that screen site dot matrix number that the present embodiment proposes is that 2 identification half-tone screen code consists of the example that a batch total is calculated machine data.As shown in figure 11: identification half- tone screen code 1101,1104 expression message codes " 0 ", 1102,1105 expression message codes " 1 ", 1103,1106 expression message codes " 2 ".Identification half- tone screen code 1101,1102,1103,1104,1105,1106 is 6 independently message codes, each identification half-tone screen code can represent 3 codings, 729 different codes of one-tenth capable of being combined.Be decided to be dot matrix 1107,1108, the identification half-tone screen code that the direction of 1109 these groups of expression reaches affiliated this group carries out mark.In actual applications, the distribution between also can considering to organize and to organize should be staggered, and when preventing from identifying, the mistake of grouping occurs.
Figure 12 is that screen site dot matrix number that the present embodiment proposes is the example of 4 identification half-tone screen code.As shown in figure 12: screen site dot matrix number is 4 o'clock, can be by the spread geometry recorded information of site, for example 1201 represent message codes " 0 ", 1202 expression message codes " 1 ", 1203 expression message codes " 2 ", 1204 expression message codes " 3 ", 1205 expression message codes " 4 ", 1206 expression message codes " 5 ", 1207 expression message codes " 6 ", 1208 expression message codes " 7 ".
Below just provided the dot matrix of code self example as the identification half-tone screen code of location dot matrix, these several half-tone screen codes not only, copy said method, can consist of and comprise 1 dot matrix, 2 dot matrix, 3 dot matrix, 4 dot matrix, and N dot matrix is at interior various identification half-tone screen codes.So long as carry out information recording/with printing screen site, within all belonging to the invention scope of the present embodiment.
Embodiment
Be described in detail the process of the implementation method of the system that can imbed bulk information on print media below in conjunction with Fig. 1:
This system has by intercepting and capturing printing images unit 100, data-reading unit 200, and code conversion unit 300, information imbeds unit 400 and the output for printing unit 500 forms.Concrete operations are as follows:
1. intercepting and capturing printing images unit 100, when imbedding for the printer integral machine information of carrying out, adopt the virtual printing technology, driver by printer intercept and capture will print comprise word, mark, figure, image is in interior printable data, the carrier of imbedding as information.When the common printed machine information of carrying out was imbedded, this unit directly read and comprises word, and mark, figure, image be in interior printable data, the carrier of imbedding as information.
2. data-reading unit 200, read the word that comprises that will imbed, mark, and figure, image can be by the data of computer generation representation, as the information that is about to be embedded at interior.
3. the code conversion unit 300, with above-mentioned read will imbed comprise word, mark, can be become by the data transformation of computer generation representation optical readable screen site fotmat code be the identification half-tone screen code interior for figure, image.The formation of this optical readable screen site fotmat code is to have considered simultaneously the characteristic of structural property with the printing screen of optical readable code, and the structural property of optical readable code is combined with the characteristic of printing screen, consisted of the identification half-tone screen code.Here, consider the characteristic of printing screen, refer to form according to Rayleigh criterion the minimized in size of the site of printing screen; When the ratio of precision of the printing equipment that comprises the printer integral machine during low for example 600dpi, the site dot matrix of identification half-tone screen code is divided into the means of a plurality of screens site, is consisted of the means of more than one half-tone screen code message code numerical value by a plurality of screens sites; When the higher for example 2400dpi of ratio of precision of the printing equipment that comprises the printer integral machine, a plurality of identification half-tone screen codes are merged into the means of the identification half-tone screen code of a screen site.A plurality of screens site consists of each networking screen coding of more than one half-tone screen code message code numerical value, or the form means of the half-tone screen code message code of the screen site in representing to belong to mutually on the same group with the difference of the orientation of screen site.The characteristic of above-mentioned consideration printing screen also can refer to comprise the dot matrix number that adopts identical screen site, consists of the means of printing screen of the poster edge of even gray scale; The gray-scale value of screen site minimizes, i.e. the minimized means of site dot matrix number of identification half-tone screen code; The spacing of the screen arranged evenly site of the identification half-tone screen code of expression screen site greater than the means of the size of self size of site in interior one or more or whole means.Here, the code of optical readable screen site form of considering the structural property of optical readable code is the constructive method of identification half-tone screen code, the dot matrix number that refers to comprise the site of identification half-tone screen code is identical means, the number means different from locative location dot matrix number of dot matrix of expression code information, locative location dot matrix are to be in means on given fixed position at interior one or more or whole geometric form meanses.The code of the optical readable screen site form of the structural property of above-mentioned consideration optical readable code is the constructive method of identification half-tone screen code, or comprise that the diverse location with the dot matrix of identification half-tone screen code distributes, different directions distributes, and difformity distributes and represents that different message codes are at interior one or more or whole geometric form meanses.The code of the optical readable screen site form of the structural property of above-mentioned consideration optical readable code is the constructive method of identification half-tone screen code, or comprise the phase-modulation of dot matrix in two-dimensional space of identification half-tone screen code, or the different distributions of the direction of propagation in two-dimensional space and the numerical value that represents message code are at interior one or more or whole physical form meanses.
4. information is imbedded unit 400, as shown in figure 13: the printing images 1302 that the optical readable screen site fotmat code after above-mentioned data transformation is arranged at regular intervals the shading form with printing net screen characteristics of Two dimensional Distribution, overlap with intercepting and capturing the printing images 1301 that the printing images unit intercepts again, consist of the printing images 1303 of the information of imbedding.Printing images should be avoided the color that optical readable screen site fotmat code uses automatically, or nearby automatically avoids at optical readable screen site fotmat code the color that optical readable screen site fotmat code uses.
5. the output for printing unit 500, will imbed the printing images printout of information, or output plate making data are for common printed machine plate making;
Below just provided example application of the implementation method of a system that can imbed bulk information on print media.In fact, can carry out with reference to above-mentioned example the system of wide range of forms, system whatever consists of, as long as comprised above-mentioned essential by intercepting and capturing printing images unit 100 for realize imbedding bulk information on print media, data-reading unit 200, code conversion unit 300, information imbed unit 400 and the output for printing unit forms 500 within part or all interior content all belongs to scope of authority of the present invention.
Advantageous effect of the present invention is:
1. can not only can realize on common printing machine in the system that imbeds bulk information on print media for one of the present invention's proposition, also can be in normal printer, the information that realizes on duplicating machine or integral machine is imbedded, and, the capacity that information is imbedded information is large, can be on arbitrarily angled reading information.
2. the identification half-tone screen code dot matrix quantity that can imbed bulk information on print media of the present invention's proposition is few, the site diameter is little, uniform gray level, easily identification, the information that is suitable for any black and white or color printing image is imbedded, and the quality that is embedded to image in printing images can obviously not descend.
Claims (4)
1. the new implementation method that can imbed the system of bulk information on print media, it is characterized in that: this system has by intercepting and capturing printing images unit (100), data-reading unit (200), code conversion unit (300), information imbed unit (400) and the output for printing unit (500) forms; Intercept and capture printing images unit (100), intercept and capture the word that comprises that will print by the driver of printer, mark, figure, image be in interior printable data, or directly read and comprise word, mark, and figure, image is in interior printable data;
Data-reading unit (200) reads the word that comprises that will imbed, mark, and figure, image can be by the data of computer generation representation at interior;
code conversion unit (300), with above-mentioned read will imbed comprise word, mark, figure, image distributes in interior can being comprised with diverse location by the data transformation one-tenth of computer generation representation, different directions distributes, many bit informations of expression code numerical value that at least a geometry in difformity is distributed in distributes, and considered the dot matrix of the identification half-tone screen code of printing net screen characteristics, or with the different distributions of the phase-modulation in two-dimensional space, the different distributions of the direction of propagation in two-dimensional space and the numerical value that represents many bit informations code are interior at least a physical, and considered the printing net screen characteristics, the dot matrix of identification half-tone screen code consists of optical readable screen site fotmat code,
Information is imbedded unit (400), optical readable screen site fotmat code after above-mentioned data transformation is arranged at regular intervals the printing images of the shading form that two-dimensional lattice distributes, overlap with intercepting and capturing the printing images that the printing images unit intercepts again, consist of the printing images of the information of imbedding, printing images is avoided the color that optical readable screen site fotmat code uses automatically, or nearby automatically avoids at optical readable screen site fotmat code the color that optical readable screen site fotmat code uses;
The printing images printout of information will be imbedded in the output for printing unit (500), or output plate making data are for common printed machine plate making.
2. a kind of new implementation method that can imbed the system of bulk information on print media according to claim 1, it is characterized in that: the characteristic of above-mentioned consideration printing screen refers to will form according to Rayleigh criterion the minimized in size of the site of printing screen; When the ratio of precision of the printing equipment that comprises the printer integral machine is hanged down, the site dot matrix of identification half-tone screen code is divided into the means of a plurality of screens site, is consisted of the means of more than one half-tone screen code message code numerical value by a plurality of screens sites; When the ratio of precision of the printing equipment that comprises the printer integral machine is higher, be the means that a plurality of identification half-tone screen codes are merged into the identification half-tone screen code of a screen site with a plurality of message codes.
3. according to claim 1, the 2 described a kind of new implementation methods that can imbed the system of bulk information on print media, it is characterized in that: the characteristic of above-mentioned consideration printing screen, or refer to comprise the dot matrix number that adopts identical screen site, consist of the means of printing screen of the poster edge of even gray scale; The gray-scale value of screen site minimizes, i.e. the minimized means of site dot matrix number of identification half-tone screen code; The spacing of the screen arranged evenly site of the identification half-tone screen code of expression screen site greater than the means of the size of self size of site in interior one or more or whole means.
4. a kind of new implementation method that can imbed the system of bulk information on print media according to claim 1, it is characterized in that: the code of the optical readable screen site form of the structural property of above-mentioned consideration optical readable code is the constructive method of identification half-tone screen code, or the dot matrix number that comprises the site of identification half-tone screen code is identical means, the number means different from locative location dot matrix number of the dot matrix of expression code information, locative location dot matrix is to be in means on given fixed position at interior one or more or whole geometric form meanses.
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| CN101571927B (en) * | 2009-05-26 | 2013-01-23 | 天津市阿波罗信息技术有限公司 | Method for realizing system for managing office work process |
| CN101727606B (en) * | 2009-11-20 | 2016-05-25 | 顾泽苍 | A kind of processing method of imbedding information in e-file |
| CN101727593B (en) * | 2009-11-20 | 2014-07-23 | 天津市阿波罗信息技术有限公司 | Method for processing digitalized paper card |
| CN101853396B (en) * | 2010-06-17 | 2012-12-05 | 中国人民解放军信息工程大学 | Identification method of point-distributed coded marks |
| CN102225671A (en) * | 2011-04-14 | 2011-10-26 | 北京印刷学院 | Encrypted Anti-counterfeiting Printing Technology Using Double Encrypted Signals to Modulate the Shape of AM Dots in Printed Matters |
| CN103164723B (en) * | 2011-12-13 | 2016-04-06 | 北京慧眼智行科技有限公司 | Coding method and equipment, coding/decoding method and equipment and printing process |
| CN112464826B (en) * | 2020-11-30 | 2024-06-28 | 京东方科技集团股份有限公司 | Photosensitive module, fingerprint acquisition system, substrate, driving method and display device |
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