CN102442096A - Method for printing variable information by embedding information into word stock - Google Patents
Method for printing variable information by embedding information into word stock Download PDFInfo
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- CN102442096A CN102442096A CN2010105003366A CN201010500336A CN102442096A CN 102442096 A CN102442096 A CN 102442096A CN 2010105003366 A CN2010105003366 A CN 2010105003366A CN 201010500336 A CN201010500336 A CN 201010500336A CN 102442096 A CN102442096 A CN 102442096A
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Abstract
The invention relates to a method for printing variable information by using a word embedded with information, and provides a plurality of novel methods for embedding information, which can embed multi-bit information into a word stock. Word and information embedding dot matrixes can be integrated, and words and information are printed on a printing medium at the same time while the words are printed, so that the works and the information are integrated; and variable information codes are directly printed in the form of the word embedded with the information, so that the effect that a note is provided with a logo and a code on the premise of not requiring any bar code, and the printing space is saved. The invention also provides the word embedded with the information in allusion to printing. The word has a digital anti-counterfeiting function; and an anti-counterfeiting note or an anti-counterfeiting logo which is electrodispersion-proof and keying-proof can be printed.
Description
Technical field
The invention belongs to field of information processing, especially a kind of variable information printing process of in the literal character library, imbedding information.
Background technology
Progress along with the computerized information science; Text information processing technology is constantly development thereupon also; The multi-lingual treatment technology of the Chinese character that grows up the beginning of this century makes the operating system of various language, all can handle the document of country variant language; Greatly facilitate the user, make the word processing technology push a peak to.The point of penetration of so next word processing technical development will be: the information of being accompanied by is imbedded the deep development of technology; The word processing technology is imbedded combining of technology with information; And produce another bring brand-new sensation, Word message to imbed that character library generates and the epoch-making new technology of variable information printing to people.
In literal, imbed the technology of information; Representational patent has CANON to deliver in Japan: " digital watermark information flush mounting and method and digital watermark information withdrawing device and method " (spy opens 2009-278181); This method proposes through changing the size of literal, and the inclination of literal comes expression information " 1 " or " 0 ".The characteristics of this technology are: simple and practical, robustness is high.Be mainly used in document through imbedding tracked information, implement document, read until the unified information security management of destroying by making.
In literal, imbed the technology of information, the up-to-date patent of delivering of Japan has CANON to declare: " image processing apparatus and control method " (spy opens 2010-199877), this method propose to come expression information " 1 " or " 0 " through the interval that changes literal.The characteristics of this technology are simple and practical equally, and robustness is high.Relevant interval through the change literal comes the delivering of patent of expression information " 1 " or " 0 " to also have Japan Ricoh, companies such as Fuji-Xerox.
In literal, imbed the other technical patent of information, have Japanese fuji Xerox to declare: " image forming device " (spy opens 2007-311888).This method proposes to come expression information " 1 " or " 0 " through in the closed region of strokes of characters, coating somber.This technology has simple and practical equally, the characteristics that robustness is high.
In literal, imbed in the technical patent of information; Japanese fuji Xerox has also declared: " information flush mounting; imbed information acquisition device " (spy opens 2008-172519), this method propose to come expression information " 1 " or " 0 " through the position of the center of gravity that changes literal.This technology not only has simple and practical, the characteristics that robustness is high, and also the information of imbedding has not visual characteristics.
Though above publication technology all has certain characteristics and very practical; But to a literal, all can only represent the information content of a bit, can not on a literal, imbed the information of self; Can not make computer through reading a literal, import the information of this literal.More than disclosed technology can not be input to all that printer prints with the form of character library or dock and realize high speed printing with high-speed press.
Summary of the invention
The objective of the invention is to: propose the some kinds of methods of in a literal character library, imbedding the new information of in literal, imbedding of many bit informations.And literal and information are imbedded dot matrix be integrated, in printing word, Word message together is printed on the print media, accomplish that Word message is integrated.
The present invention also aims to: propose a kind of literal, have the false proof function of digitlization, can realize that anti-electricity divides the false proof bill of anti-stingy picture or the printing of anti-counterfeiting mark to the information that is embedded with of printing.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of usefulness is embedded with the literal of information and realizes the variable information method of printing, it is characterized in that:
(1) will represent the literal of the information that is embedded with of variable information code value, directly be printed on the printing position of appointment;
(2) literal of the information that is embedded with of above-mentioned expression variable information code value is with the form of font file, the image file form, in the vector file form wherein a kind of form showed;
(3) the above-mentioned information recording means that is embedded with the literal of information is: dot pattern method, radiation distribution, stroke weight method; Stroke dislocation method, stroke bar code method, stroke different colours method; The different gray level method of stroke are interior, the literal of the information that is embedded with that at least a information recording means is constituted.
A kind of recognition methods of variable information printed images of the literal that is embedded with information is characterized in that:
(1) use imageing sensor to read the dot pattern method, radiation distribution, stroke weight method; Stroke dislocation method, stroke bar code method, stroke different colours method; The different gray level method of stroke are interior, the character image of the literal of the information that is embedded with that at least a information recording means is constituted;
(2) imageing sensor and the photocurrent versus light intensity of character image that cooperates imageing sensor to read the literal of the information of being embedded with possess the infrared ray of comprising, visible light, and ultraviolet ray is in the spectral characteristic of interior more than one.
(3) through above-mentioned dot pattern method; The radiation distribution, stroke weight method, stroke dislocation method; The stroke bar code method; Stroke different colours method, the different gray level method of stroke are interior, and the rule of the image construction of the literal of the information that is embedded with that at least a information recording means is constituted identifies the code value of the literal of the information of being embedded with;
And, around literal, be provided with more than onely, direct recorded information has and prints the screen characteristic, the dot matrix of geometric or physical distribution.
And; Constitute the having or not of information point of the literal of the information that is embedded with, the dot matrix of the diverse location of information point distributes, and the dot matrix of information point different directions distributes; The difform dot matrix of information point distributes; The dot matrix of the different sizes of information point distribute, and the dot matrix of information point varying number distributes, at least a form in the dot matrix of the various combination of information point is distributed in according to the formed literal that is embedded with information of geometric characteristic.
And; Out of phase modulation (PM) result's the dot matrix of information point that constitutes the literal of the information that is embedded with distributes; The dot matrix of different modulating mode distributes, and the dot matrix of the different directions of propagation distributes, and the dot matrix of different mechanics vectors distributes; The dot matrix of different frequency is in being distributed in, at least a form according to the formed literal that is embedded with information of physical characteristic.
And the literal that constitutes the information that is embedded with is the information recording means that is configured to rely on literal.
And the printing of the literal of variable information and the be embedded with information relevant with variable information is means of taking to generate with type-setting mode printed data; The means of virtual printing; Cover the means of printing; At least a means in the means of directly printing.
And, as the another kind of form of the literal of the information of being embedded with, in the literal of the information of being embedded with, increase the means of camouflage color dot matrix.
And, as another form of the literal of the information of being embedded with, in the literal of the information of being embedded with, be separated into a plurality ofly to the dot matrix of expression information, adopt plural number to plant the ink printing of different spectral characteristics respectively.
And; Be embedded with the another means of the literal of information as identification; In the literal of the information of being embedded with, to the dot matrix that is separated into a plurality of expression information, imageing sensor and the illumination of adopting plural number to plant different spectral characteristics respectively realize the identification to the literal of the information of being embedded with.
Advantage of the present invention and good effect are: a kind of variable information printing process that in the literal character library, is embedded with information that the present invention proposes, can be not through the form of literal identification OCR, and the literal that directly will be printed on the printed medium is input in the computer automatically.The character library form that also can generate through the literal of the information of being embedded with is directly docked with high speed coding printing machine, can realize the written form of variable information code with the information of being embedded with directly printed.Can save printing space in the effect of one yard of a mark that need not under the situation of any bar code to realize bill, also can cooperate false proof measure to realize not reproducible sign simultaneously, or printing that can not forged note.
Description of drawings
Fig. 1 is a kind of flow chart of variable information printing data generating method of the literal that is embedded with information;
Fig. 2 is a kind of flow chart of recognition methods of variable information printed images of the literal that is embedded with information;
Fig. 3 is the sketch map through the many bit informations of different directions logger computer of information point;
Fig. 4 is the sketch map through the many bit informations of different patterns logger computer;
Fig. 5 is by the sketch map of concentrating the site with the literal that disperses the information that is embedded with that the site constituted;
Fig. 6 is a sketch map of being realized the many bit information records of computer by information point according to different positions;
The result's of Fig. 7 out of phase modulation (PM) sketch map;
Fig. 8 is the sketch map that adopts the literal of the information that is embedded with of radiating the distribution realization;
Fig. 9 is the sketch map of another kind of form that adopts the literal of the information that is embedded with that the radiation distribution realizes;
Figure 10 adds the sketch map that the information dot matrix constitutes the literal of the information that is embedded with on common language;
Figure 11 is the sketch map of another form of the literal of the information of being embedded with;
Figure 12 is the sketch map by the literal of the information that is embedded with of stroke weight method realization;
Figure 13 is the sketch map by the literal of the information that is embedded with of stroke dislocation method realization;
Figure 14 is the sketch map by the literal of the information that is embedded with of stroke bar code method realization;
Figure 15 is the sketch map by the literal of the information that is embedded with of stroke different colours method realization;
Figure 16 utilizes characteristic that RGB color space and CMYK color space can not conversion to realize the sketch map of anti-counterfeit printing;
Figure 17 is the sketch map of literal with the information that is embedded with of security feature;
Figure 18 is the sketch map of the literal of the be embedded with information of another kind with security feature.
Among the figure:
301 is a site
302 is the information point in the site
303 is the information point in the site
501 is the information point of AM screen
502 is the information point of FM screen
601 is a site
602 is the information point in the site
701 is a site
702 is the point in the site
801 is a literal that is embedded with information
802 is character image
803 is the center of gravity or the center of literal
804 for the information point of expression information " 1 "
805 for there not to be expression information " 0 " on the position of information point
901 expression anchor points
902 expression checkpoints
100 is a literal that is embedded with information
101 is the image of common language
102 is the distribution of information point
1101 is a literal that is embedded with information
1102 is character image
1103 is information point
1104 is anchor point
1105 is literal numerical check point
1200 is a literal that is embedded with information
1201 is character image
1202 represent information " 0 " for thin stroke
1203 represent information " 1 " for thick stroke
1204 represent information " 0 " for thin stroke
1205 and 1206 represent information " 1 " for thick stroke
1207 and 1208 represent information " 0 " for thin stroke
1209 represent information " 1 " for thick stroke
1300 is a literal that is embedded with information
1301 is character image
1302 is not occur dislocation expression information " 0 " on the stroke
1303 is dislocation expression information " 1 " to have occurred on the stroke
1304 is not occur dislocation expression information " 0 " on the stroke
1305 and 1306 is dislocation expression information " 1 " to have occurred on the stroke
1307 and 1308 is not occur dislocation expression information " 0 " on the stroke
1309 is dislocation expression information " 1 " to have occurred on the stroke
1400 is a literal that is embedded with information
1401 is character image
1402 is slice stroke representation information " 0 "
1403 is thick bar stroke representation information " 1 "
1404 is slice stroke representation information " 0 "
1405 and 1406 is thick bar stroke representation information " 1 "
1407 and 1408 is slice stroke representation information " 0 "
1409 is thick bar stroke representation information " 1 "
1500 is a literal that is embedded with information
1501 is character image
1502-1509 is the stroke of various colors or different gray scales
1701 is a literal that is embedded with information
1702 is character image
1703 is the information dot matrix
1704 is the camouflage color dot matrix
1705 are the location dot matrix
1801 is a literal that is embedded with information
1802 is character image
1803 is information point
1804 are the location dot matrix
1805 are a literal that is embedded with information after duplicating
1806 are the character image after duplicating
1807 are the information point after duplicating
1808 are the location dot matrix after duplicating
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is done further detailed description, but embodiment of the present invention is illustrative, rather than determinate.
Fig. 1 is a kind of flow chart of variable information printing data generating method of the literal character library that is embedded with information.
Shown in Fig. 1: the variable information printing data generating method that is embedded with the literal of information is made up of four steps.
At first, in the step that reads printing position information, read and comprise tax reciept, commodity sign is in the information or the data in the relevant variable information printing position of the interior printed images that will print variable information.The printed images of printing variable information, be generally through common non-variable information printing-flow the printed images that will realize.This printed images is completed for printing by common non-variable information before the printing variable information, and the anti-electricity that will propose below divides, and anti-printing of scratching the camouflage color dot matrix of picture also will be accomplished in this operation.
In printing during variable information, the variable information printing position in the view data of common non-variable information printing, the relative position between printed data will be with the form of image, or the form of data is imported in the composing system of variable information printing machine.
Here, be not limited only to the printed images of tax reciept, commodity sign, every all printed images of printing variable information that need all can be included.
Secondly, in the step that reads the variable information code, read customer-furnished variable information code data; These data are generally 12 decimal datas, mainly represent the number of tax reciept, the attribute of commodity; Build date, manufacturing location is permitted the selling spot; And user's information specific etc., variable information can also be carried out encryption through computer.
Here being not limited to the variable information of numeral, also can be Chinese character, and Roman capitals or symbol or the like can comprise all literal.
Next; In the text transform step of the information of being embedded with; According to the numerical value of variable information, from the literal character library that is installed in the information that is embedded with the operating system in advance, read the character image of the information of being embedded with; With this image configurations on the fixed printing position, generate a printed data to above-mentioned variable information.
Whether the processing of at last, judging all variable information codes is all accomplished; Otherwise return second step; The generation of variable information printed data that is the literal of the information that then is embedded with is accomplished.Because being the form with character library, the literal that is embedded with information occurs; Coding printing machine or printer can be handled according to the form of literal; Therefore be installed in coding printing machine or the printer through the whole printed data after 4 step process above-mentioned, just can realize the variable information printing of the literal of the information that is embedded with at a high speed.
Be embedded with the literal of information can be in the composing system of coding printing machine or printer the literal of the information that is embedded with through the character library form carry out the printing of variable information; Can also on the driver of printer, the driver of a virtual printer be installed through the mode of virtual printer; The driver of this virtual printer is connected coding printing machine or printer through program; From the driver of coding printing machine or printer, just can obtain a printed images, in this printed images, stick according to the character image of the information that is embedded with that will be relevant on user's appointed positions with variable information; Then; Be sent to coding printing machine or printer again and implement printing or printing, repeat above-mentioned operating process, finally just can realize printing or printing whole variable information.
The printing of variable information that is embedded with the literal of information can also be adopted the method that covers printing (Overly Print); Promptly on user's appointed positions; The overall printing image that the character image of the information that is embedded with that will be relevant with variable information sticks; Be placed on and have in the specified internal memory of the coding printing machine that covers printing functionality or printer, coding printing machine or printer are automatically with this printed images and tax reciept, and the packing of product or label printing image cover printing; Repeat above-mentioned operating process, finally just can realize printing or printing whole variable information.
The printing of variable information can also be adopted direct method of printing; Promptly pass through program at same tax reciept, the variable information printing position of the printed images of the packing of product or label, variable information data of every interpolation; And on the character image position of the be embedded with information relevant with variable information; Whenever the view data that sticks the literal of the information that is embedded with relevant with variable information just is sent to coding printing machine or printer, implements printing or prints, up to the printing of whole variable information or be completed for printing.
Fig. 2 is a kind of flow chart of recognition methods of variable information printed images of the literal that is embedded with information.
As shown in Figure 2: a kind of recognition methods of variable information printed images of the literal that is embedded with information is made up of three steps.
At first; In the step of the character image that reads the information of being embedded with, through comprising scanner, CCD; CMOS reads the form with character library at any one interior imageing sensor, the character image of the printed information that is embedded with on print media of the form of view data or the form of vector data.
Here, the receptible spectral characteristic of sensor, and the illumination spectral characteristic can be ultrared, can be luminous ray, also can be ultraviolet light.Can be a kind of spectral characteristic, also can be the spectral characteristic of plural number.
The above-mentioned computer graphical code that written form was showed with the information of being embedded with is with the form of character library, image format, vector form wherein a kind of form showed.
At last, showing or output is embedded with in the step of literal value of information, showing or output is embedded with the code value of the literal of information.Whether whether the data that the user is embedded with through observation after the literal identifier identification of information are consistent with data on tax reciept or the antifalsification label, be real thereby just can differentiate this tax reciept or antifalsification label.
When identifier is embedded with the literal of information in identification; The general infrared illumination that adopts, infrared imaging sensor is discerned, and mainly considers that the literal to the information of being embedded with adopts printing ink or the ink powder or the transparent red outside line absorbing ink etc. of carbon containing to print; Utilize these printed materials to have characteristic to infrared ray absorbing; And the CMY color is to the characteristic of infrared ray projection, thereby, can the literal of the information of being embedded be imbedded in the coloured image.When adopting the thermal printer printing,, therefore can adopt the image recognition device of visible light to discern because therefore carbon containing not in the image that thermal printer prints out can not be discerned with the infrared ray identifier.In order to carry out the application of higher levels of false proof invisible-bar-number, can also take the printing ink of different spectrum or ink powder to print respectively with referencer the information point of the literal of the information of being embedded with.When identification, take the alternately illumination of different spectrum, respectively information point and referencer extraction are carried out integral body identification.
What the present invention proposed realizes the character library of the literal of the information that is embedded with through increasing some dot matrix in literal, the distribution of its dot matrix can consider to have the following several kinds of realizations that distribute.
It is the sketch map through the different many bit informations of direction distribution record computer of dot matrix that information is imbedded dot matrix; As shown in Figure 3: the dot matrix in the literal of the information that is embedded with that site 301 is made up of information point 302 and 303, represent different information according to the different directions that information point 302 and 303 is constituted.
In Fig. 3, figure a can represent information 0, and figure b can represent information 1, and figure c can represent information 2, and figure d can represent information 3.Be embedded with the literal a of information, b, c, d obviously can regard as by the different directions and the different electromagnetic wave directions of propagation, and the different mechanical vector result realizes what the many bit informations of computer write down.
Fig. 4 is that the dot matrix in the literal of the information of being embedded with is the sketch map through the many bit informations of different patterns logger computer.In Fig. 4, figure a can represent information 0, and figure b can represent information 1, and figure c can represent information 2, and figure d can represent information 3.
Fig. 5 is that the dot matrix in the literal of the information of being embedded with is by the sketch map of concentrating the site with the literal that disperses the information that is embedded with that the site constituted.As shown in Figure 5, all printing points in the site is constituted the example that spaced point b that a concentrated site a that dot matrix constituted and the site that has a dispersion at least constitute constitutes the site pattern of the information of can imbedding.Be set at the value of information " 1 " to concentrated site a, disperse site b to be set at the value of information " 0 ".On the contrary, can be set at the value of information " 0 " to concentrated site a, disperse site b to be set at the value of information " 1 ".
In addition, as shown in Figure 5 in order to constitute the standard dot pattern, the point 501 high H that concentrate site a
50As the diameter value of two printing points (the minimum printable size of printer), the width W of the point 501 of concentrating site a
50Diameter value as a printing points.The point 502 of dispersion site b only plays the effect of shading gray scale homogenization, is not used in identification, the height H of the point 502 that disperses the site
51With width W
51All as the diameter value of a printing points.The height of site is H
52, width is W
52
As shown in Figure 5, can regard concentrated site a as the amplitude modulation mode is the AM screen, is the FM screen disperseing site b to regard mode of frequency regulation as.Promptly can come recorded information according to the different dot pattern of modulation system.
In addition, count the site, disperse site b to regard high-frequency as to count the site, so we can say that concentrating site a is according to the composition recorded information of different frequency number with disperseing site b because can regard concentrated site a as low frequency.
And then, concentrate the gray value of each site of site a big, disperse the gray value of each site of site b little, so we can say that also concentrating site a and disperseing site b is the recorded information of coming to the different gray values of a point.
In other words, the size of the point of concentrated site a is big, and the size of each point of dispersion site b is little, so we can say that concentrating site a and disperseing site b is that the dot pattern that basis varies in size comes recorded information.
About above content, a lot of meanss of interpretation can also be arranged.If but identical with above dot pattern all belongs within the scope of the present invention.
Fig. 6 is that the dot matrix in the literal of the information of being embedded with is a sketch map of being realized the many bit informations records of computer by information point according to the result of different positions and phase modulated.As shown in Figure 6: figure (a) can be represented information 0, and figure (b) can be represented information 1, and figure (c) can represent that information 2 and figure (d) can represent information 3, and figure (e) and figure f can represent positioning reference information.
In addition, Fig. 7 is a given literal site 701 that is embedded with information shown in Figure 6, a that the some transmitting signal of the different physical phase modulated (PM) through information point 702 is constituted, b, the result's of four kinds of outs of phase modulation of c and d (PM) sketch map.
The derivation of the Mathematical Modeling of Fig. 6 and the dot pattern that is made up of phase modulated shown in Figure 7 is as follows.
If by the function of the dot pattern that square lattice constituted of interval T be ζ (x, y), then ζ (x, y) following by the result after the standardization:
Here, replying function to the signal of the dot pattern of phase modulated is:
η(x-i×T，y-j×T)＝η(m×T，n×T)
By level of standardization m, and the centre coordinate value of the point of vertical n dot pattern does
(m * T, n * T), in addition each of dot pattern put relative centre coordinate (m * T, the displacement function of n * T) be [ε (and m, n), δ (m, n)], so, the set D of dot pattern is following:
η(m×T，n×T)＝η{ε(m，n)×T，δ(m，n)×T}+
η{[1-ε(m，n)]×T，[1-δ(m，n)]×T}+…+
η{[∞-ε(m，n)]×T，[∞-δ(m，n)]×T}+
η{[1+ε(m，n)]×T，[1+δ(m，n)]×T}+…+
η{[∞+ε(m，n)]×T，[∞+δ(m，n)]×T}
Promptly
{[m×T+ε(m，n)×T]，[n×T+δ(m，n)×T]}∈D
Thus, input is replied function η { [i+ ε (m, n)] * T, the phase-shifted amount ζ after [j+ δ (m, n)] * T} brings into signal
M-i, n-jThe output signal be:
Here, and control ε (m, n) and (m n), just can realize being directed against transmitting signal { ζ m, the phase modulated of n}.
Fig. 8 is the sketch map that adopts the literal of the information that is embedded with of radiating the distribution realization.As shown in Figure 8: in the literal 801 of the information of being embedded with; If the center of gravity of the literal of literal 802 or center are 803; Center of gravity or center 803 with literal are emission center, around literal, can establish 16 dot matrix, and each dot matrix is represented a bit information respectively to have still not have; 16 dot matrix can be represented two byte information, just in time can represent all ISNs of Chinese character.Dot matrix quantity around literal can information content size as requested increase and decrease.
Dot matrix around the literal of the information that is embedded with of Fig. 8 is that the distribution of information point comes and can constitute with reference to the code of ordinary two dimensional bar code through the having or no record information of information point; Needs according to using to the ordinary two dimensional bar code, for example increase the hamming distance between the code; Reduce the similar degree between code, improve the code distributing homogeneity, the maximization of code distribution area; Minimizing or the like of code distribution area can be realized various dot matrix combinations, forms various code forms; Simultaneously, can generate the literal of the information that is embedded with of various dot pattern, these all belong within the scope of the present invention.
Fig. 9 is the sketch map of another kind of form that adopts the literal of the information that is embedded with that the radiation distribution realizes.As shown in Figure 9: in the literal of the information that is embedded with that the employing radiation distribution that Fig. 8 provides is realized, increased direction location dot matrix 901, and dot matrix quantity verification dot matrix 902, the purpose that increases these two kinds of dot matrix is to realize the part identification of single literal.Can increasing and decreasing according to actual needs or remove of these two kinds of dot matrix.
Figure 10 is the sketch map that is made up of the literal of the information of being embedded with the dot pattern method.Shown in figure 10: 100 for being embedded with the literal of information, and 101 is a common language image, and 102 is information point.Information point 102 is the configuration of benchmark through different positions with the character features, can represent bit information more than, and for example (a) can represent information " 0 "; (b) can represent information " 1 ", (c) can represent information " 2 ", (d) can represent information " 3 "; (e) can represent information " 4 "; (f) can represent information " 5 ", (g) can represent information " 6 ", (h) can represent information " 7 ".
The characteristics and the novelty of the literal of the information that is embedded with shown in Figure 10 are, only need dot matrix seldom just can realize imbedding than the information of large information capacity, and be very little to the appearance effects of character library.
Figure 11 is the sketch map of another form of the literal of the information of being embedded with.Shown in figure 11: 1101 for being embedded with the literal of information, and 1102 is literal, and 1103 is the information dot matrix, and 1104 are direction location dot matrix, and 1105 is the numerical check dot matrix.(a) being the literal of the information that is embedded with of numerical value 0, (b) is the literal of the information that is embedded with of numerical value 1, (c) is the literal of the information that is embedded with of numerical value 2; (d) being the literal of the information that is embedded with of numerical value 3, (e) is the literal of the information that is embedded with of numerical value 4, (f) is the literal of the information that is embedded with of numerical value 5; (g) be the literal of the information that is embedded with of numerical value 6; (h) being the literal of the information that is embedded with of numerical value 7, (i) is the literal of the information that is embedded with of numerical value 8, (j) is the literal of the information that is embedded with of numerical value 9.And for example shown in Figure 11: no matter the direction of direction anchor point matrix representation information dot matrix what literal, all is below on two drift angles.The numerical check dot matrix has only when literal numerical value is odd number and just exists, otherwise does not just exist.Mainly be used for the result of identification is carried out verification or error correction usefulness.The position reference of information dot matrix 1103 is to rely on the benchmark of literal self to realize.
But the above-mentioned literal that is embedded with information all is through adding the dot matrix of the geometric or physical distribution of recorded information around the literal, is implemented in the information of imbedding in the literal.
Here; The literal of the information that is embedded with that described geometry distributes is meant: the having or do not have the distribution of the diverse location of information point, the distribution of the different directions of information point of information point that constitutes the literal of the information that is embedded with; The difform distribution of information point; The distributions of the different sizes of information point, the distribution of information point varying number, but the combination distribution of information dot matrix is at the literal according to the information that is embedded with of the formed recorded information of geometric characteristic of interior at least a form.
And the described physical literal that is embedded with information is meant: constitute out of phase modulation (PM) result's the distribution of information point of the literal of the information that is embedded with; The distribution of different modulating mode; The distribution of the different directions of propagation; Different mechanics vectors, in the dot matrix of different frequency is distributed in, but the literal according to the information that is embedded with of the formed recorded information of physical characteristic of at least a form.
Figure 12 is the sketch map by the literal of the information that is embedded with of stroke weight method realization.Shown in figure 12: the 1200th, the example of the literal of the information that is embedded with that realizes by the stroke weight method; Be that thin stroke can be represented information " 0 " on 1202 strokes of literal 1201; Being that thick stroke can be represented information " 1 " on 1203 strokes of literal 1201, is that thin stroke can be represented information " 0 " on 1204 strokes of literal 1201, is that thick stroke can be represented information " 1 " respectively on 1205 and 1206 strokes of literal 1201; Be that thin stroke can be represented information " 0 " respectively on 1207 and 1208 strokes of literal 1201; Be that thick stroke can be represented information " 1 " on 1209 strokes of literal 1201, thus, Figure 12 literal can be by 01011001 coded representation.
Figure 13 is the sketch map by the literal of the information that is embedded with of stroke dislocation method realization.Shown in figure 13: the 1300th, the example of the literal of the information that is embedded with that realizes by stroke dislocation method; Dislocation on 1302 strokes of literal 1301, do not occur and can represent information " 0 "; Dislocation on 1303 strokes of literal 1301, occurs and can represent information " 1 "; Dislocation on 1304 strokes of literal 1301, do not occur and can represent information " 0 "; Dislocation on 1305 and 1306 strokes of literal 1301, occurred and can represent information " 1 " respectively, dislocation on 1307 and 1308 strokes of literal 1301, do not occurred and can represent information " 0 " respectively, dislocation on 1309 strokes of literal 1301, occurred and can represent information " 1 "; Thus, Figure 13 literal also can be by 01011001 coded representation.
Figure 14 is the sketch map by the literal of the information that is embedded with of stroke bar code method realization.Shown in figure 14: the 1400th, the example of the literal of the information that is embedded with that realizes by the stroke bar code method; On 1402 strokes of literal 1401, can represent information " 0 " for fillet; On 1403 strokes of literal 1401, can represent information " 1 ", on 1404 strokes of literal 1401, can represent information " 0 ", on 1405 and 1406 strokes of literal 1401, can represent information " 1 " respectively for wide for fillet for wide; On 1407 and 1408 strokes of literal 1401, can represent information " 0 " respectively for fillet; On 1309 strokes of literal 1301, can represent information " 1 " for wide, thus, Figure 14 literal also can be by 01011001 coded representation.
Figure 15 is the sketch map by the literal of the information that is embedded with of different colours method realization on the stroke.Shown in figure 15: the 1500th, the example of the literal of the information that is embedded with that is realized by the stroke bar code method is located on the stroke of literal 1501 promptly on 8 stroke positions of 1502 to 1509, can coat k kind color, can represent the information of (k-1) * 8 bit.In like manner, in Figure 15, be located on the stroke of literal 1501 promptly on 8 stroke positions of 1502 to 1509, the different gray scales of control k kind stroke can be represented the information of (k-1) * 8 bit equally.
In literal, imbed information, the method for method representation information that also can be through in strokes of characters, digging circle is through the end points at strokes of characters; Purpose that realization information imbeds or the like is handled in crosspoint, places such as joining, still; Said method processing method can occur to different literal, imbeds the difference of information content etc., therefore is not suitable for the requirement of imbedding identical information to a literal; Here, just do not narrated one by one.
Figure 16 utilizes color region that RGB color space and CMYK color space can not conversion to realize the sketch map of anti-counterfeit printing.The general employed color space of scanner is the RGB form, and the employed color space of printing machine is the CMYK form.Shown in figure 16: if color is chosen in the color region of RGB/CMYK, its printed image that goes out can be duplicated and print out by scanner faithfully, and promptly this color region is reproducible zone.Shown in figure 13 again: if select the printed image that goes out of RGB color region or CMYK color region not duplicated faithfully by scanner.Utilize such principle can realize the effect of anti-counterfeit printing.For example; The color that is embedded with the literal of information is selected the K version, on the literal of the information of being embedded with, can print the image that becomes with CMY three colour cells, and and for example the color of image of fruit CMY three colour cells one-tenth is darker; Actual composition with black; But owing to do not contain carbon in the color of image that becomes with CMY three colour cells, be transmission, so do not influence the recognition of literal of the information that is embedded with of K version infrared ray.But; If above-mentioned image is duplicated by scanner, the printed image that goes out, the originally color of image of the composition that becomes of CMY three colour cells with black; When minute version, will be reflected on the K version; Clash with the literal of the original information that is embedded with on the K version, therefore can not correctly read the literal of the information that is embedded with on the K version, thereby reach false proof effect.
Figure 17 is the sketch map of literal with the information that is embedded with of security feature.Shown in figure 17: 1701 for being embedded with the literal of information, around literal 1702, is provided with information dot matrix 1703, and camouflage color dot matrix 1704, location dot matrix 1705.Conversion characteristics according to RGB color space and the CMYK color space of Figure 16; If reader is ultrared; Then the black of information dot matrix 1703 usefulness carbon containings is the K version, or to the transparent ink printing of infrared ray absorbing, the Dark grey printing that camouflage color dot matrix 1704 usefulness CMY mix to infrared transmitting.When reading with the infrared ray reader, information dot matrix 1703 is visual dot matrix, can clearly be read, and camouflage color dot matrix 1704 is not visual dot matrix, can not be read by the infrared ray reader.When the literal 1701 of the information of being embedded with is read into the RGB electronic image by the high accuracy scanner; Information dot matrix 1703 is read as a kind of color with camouflage color dot matrix 1704; Information dot matrix 1703 through after the CMYK branch version all is divided into the K version with camouflage color dot matrix 1704, and the literal that prints out has just lost information.Thereby played the anti-effect of duplicating of anti-scanning.Form as the literal character library; The printing of the literal of the information that is embedded with security feature of Figure 17 needs to use two character libraries, and promptly Figure 11 is a character library; The camouflage color dot matrix is to use another character library, carries out the literal that twice printing synthesizes the information that is embedded with security feature of Figure 17 respectively.
Figure 18 is the sketch map of the literal of the be embedded with information of another kind with security feature.Shown in figure 18: 1801 for being embedded with the literal of information, around literal 1802, is provided with information dot matrix 1803, and in the bottom of literal 1802, the right is provided with 10 location dot matrix 1804, and the location dot matrix is represented with real stain.Relative 10 the location dot matrix 1804 of information dot matrix 1803 can be arranged on 0 to 9 the position of drawing a circle, and can represent 0 to 9 information respectively.Here, information dot matrix 1803 can be represented numerical value 5 on 5 position.According to the conversion characteristics of RGB color space and CMYK color space shown in Figure 16, with the black ink or the ink powder printing of information dot matrix 1803 usefulness carbon containings, 10 black ink or ink powder printings of locating dot matrix 1804 usefulness to infrared transmitting.Form as the literal character library; The another kind of Figure 18 has the printing of literal of the information that is embedded with of security feature; Also need use two character libraries; Be that Figure 11 is a character library, the camouflage color dot matrix is to use another character library, carries out the literal that another kind that twice printing synthesize Figure 18 has the information that is embedded with of security feature respectively.
When identification another kind shown in Figure 180 has the literal of the information that is embedded with of security feature; Through the switching of infrared illumination and visible illumination, read the information dot matrix 1803 under the infrared illumination respectively, and the location dot matrix under the visible illumination; Under the normal condition; The information dot matrix is the branch version printing under an image with the location dot matrix, therefore, has kept strict positioning relation between information dot matrix and the location dot matrix; When the scanner of illegal person through infrared camera and visible light reads the literal that another kind shown in Figure 180 has the information that is embedded with of security feature respectively; And copy the literal 1805 of the imitated information that is embedded with, and because of being the image that under different equipment, reads, the information point 1807 around the literal 1806 after imitated; And the positioning relation between the anchor point 1808 just has been destroyed, so reader is easy to judge that the literal 1805 of the imitated information that is embedded with is false.
Here, not only can use the switching of infrared ray and visible light and read, infrared ray and ultraviolet ray, visible light all can be realized above-mentioned effect with ultraviolet ray or the like.The illumination of reader and the spectral characteristic of imageing sensor not only can adopt two kinds three kinds even manyly also can.Not only utilize printing ink or the ink powder characteristic to the absorption and the transmission of certain spectrum, printing ink also capable of using or ink powder are to the fluorescent characteristic of certain spectrum, reflective characteristic, polarized light property or the like.
Claims (10)
1. the variable information method of printing realized in the literal with the information of being embedded with, and it is characterized in that:
(1) will represent the literal of the information that is embedded with of variable information code value, directly be printed on the printing position of appointment;
(2) literal of the information that is embedded with of above-mentioned expression variable information code value is with the form of font file, the image file form, in the vector file form wherein a kind of form showed;
(3) the above-mentioned information recording means that is embedded with the literal of information is: dot pattern method, radiation distribution, stroke weight method; Stroke dislocation method, stroke bar code method, stroke different colours method; The different gray level method of stroke are interior, the literal of the information that is embedded with that at least a information recording means is constituted.
2. the recognition methods of the variable information printed images of a literal that is embedded with information is characterized in that:
(1) use imageing sensor to read the dot pattern method, radiation distribution, stroke weight method; Stroke dislocation method, stroke bar code method, stroke different colours method; The different gray level method of stroke are interior, the character image of the literal of the information that is embedded with that at least a information recording means is constituted;
(2) imageing sensor and the photocurrent versus light intensity of character image that cooperates imageing sensor to read the literal of the information of being embedded with possess the infrared ray of comprising, visible light, and ultraviolet ray is in the spectral characteristic of interior more than one.
(3) through above-mentioned dot pattern method; The radiation distribution, stroke weight method, stroke dislocation method; The stroke bar code method; Stroke different colours method, the different gray level method of stroke are interior, and the rule of the image construction of the literal of the information that is embedded with that at least a information recording means is constituted identifies the code value of the literal of the information of being embedded with.
3. according to claim 1; The information recording means that 2 described formations are embedded with the literal of information is meant for the dot pattern method: around literal, be provided with more than one; Direct recorded information has printing screen characteristic, the dot matrix of geometric or physical distribution.
4. according to claim 1; 2 and 3 described geometric distributions are meant: constitute the having or not of information point of the literal of the information that is embedded with, the dot matrix of the diverse location of information point distributes, and the dot matrix of information point different directions distributes; The difform dot matrix of information point distributes; The dot matrix of the different sizes of information point distribute, and the dot matrix of information point varying number distributes, at least a form in the dot matrix of the various combination of information point is distributed in according to the formed literal that is embedded with information of geometric characteristic.
5. according to claim 1; 2 and the 3 described physical literal that are embedded with information are meant: out of phase modulation (PM) result's the dot matrix of information point that constitutes the literal of the information that is embedded with distributes; The dot matrix of different modulating mode distributes, and the dot matrix of the different directions of propagation distributes, and the dot matrix of different mechanics vectors distributes; The dot matrix of different frequency is in being distributed in, at least a form according to the formed literal that is embedded with information of physical characteristic.
6. according to claim 1,2 described a kind of usefulness are embedded with the literal of information and realize that variable information method of printing and recognition methods are meant: the literal that constitutes the information that is embedded with is the information recording means that is configured to rely on literal.
7. the printing process of the literal of variable information according to claim 1 and the be embedded with information relevant with variable information is meant: variable information and with variable information the printing of the literal of the relevant information that is embedded with is means of taking to generate with type-setting mode printed data; The means of virtual printing; Cover the means of printing; At least a means in the means of directly printing.
8. the formation that is embedded with the literal of information according to claim 1 is meant: as the another kind of form of the literal of the information of being embedded with; In the literal of the information of being embedded with, increase the means of camouflage color dot matrix.
9. the formation that is embedded with the literal of information according to claim 1 is meant: as another form of the literal of the information of being embedded with; In the literal of the information of being embedded with, be separated into a plurality ofly to the dot matrix of expression information, adopt plural number to plant the ink printing of different spectral characteristics respectively.
10. the method that identification according to claim 2 is embedded with the literal of information is meant: another means that is embedded with the literal of information as identification; In the literal of the information of being embedded with; To the dot matrix that is separated into a plurality of expression information, imageing sensor and the illumination of adopting plural number to plant different spectral characteristics respectively realize the identification to the literal of the information of being embedded with.
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