CN109376833A - Triple anti-fake two-dimension codes of pseudo-random information double exposure digital fluorescence images - Google Patents
Triple anti-fake two-dimension codes of pseudo-random information double exposure digital fluorescence images Download PDFInfo
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- CN109376833A CN109376833A CN201811569098.7A CN201811569098A CN109376833A CN 109376833 A CN109376833 A CN 109376833A CN 201811569098 A CN201811569098 A CN 201811569098A CN 109376833 A CN109376833 A CN 109376833A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/06009—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking
- G06K19/06037—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with optically detectable marking multi-dimensional coding
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Abstract
A kind of triple anti-fake two-dimension codes of pseudo-random information double exposure digital fluorescence images, the anti-fake two-dimension code passes through fluorescence falsification preventing technology, metamerism matching algorithm, halftone screen and Information Hiding Techniques, digital fluorescence images and pseudo-random information image are implanted in a width plain code image in 2 D code, generate the special image in 2 D code containing digital fluorescence images and pseudo-random information image, the image in 2 D code can show digital fluorescence images under ultraviolet light, the information of plain code image in 2 D code can be read under visible light, pseudo-random information image can then be shown under infrared light, it can be used to characterize whether printed matter is certified products by digital fluorescence images and pseudo-random information image, if personation replicates this two dimensional code, because it loses the color characteristics of digital phosphor and metamerism, digital fluorescence images and pseudo-random information image will be lost, Therefore it can identify the brushes product such as marking label, bill, marketable securities with this characteristic with the presence or absence of personation infringement problem.
Description
Technical field:
The present invention relates to a kind of anti-counterfeiting printing technology, especially a kind of pseudo-random information double exposure digital fluorescence images it is triple anti-fake
Two dimensional code can be used for the anti-fake of various printed matters.
Background technique:
Method for anti-counterfeit relatively common at present has following several: the first is laser anti-false sign, with laser recessiveness ink fluorescent
The symbol of product or special identification icon are printed to the anti-fake label of product by ink-printing techniques, and same class product uses
Same labeling, because anti-fake label is easier to forge, and the anti-fake label forged is used on fake products, causes product
It is true and false to obscure, it is accordingly difficult to effectively anti-fake.Second is cipher counterfeit-proof labeling, and used method is that every product compiles one group
The coding of number, every product is different from, this number is printed on labeling and is covered, while can by this number deposit
For when consumer buys product, the number in mark is passed through phone or the meter that networks in the Computer Database of consumer query
Digital entering computer database in mark is compared identification by calculation machine, and identical is true, difference as vacation, method letter
Single, identification is easy, and is not easy to forge, but in actual use, prints labeling after generating because coded data is that computer is unified.It represents
The true and false coded data of product may be illegally duplicated fraud, meanwhile, the coding that coding also can be recycled on the product that do not inquire makes mark
And be attached on false pain product, antifalse effect it is difficult to ensure that.The third is texture anti-fake, anti-fake with the textural characteristics on its labeling, though
Right more difficult forgery, but the serial number due to being only marked with patch, and be plain code, every piece of mark can be inquired repeatedly, and fake producer can pass through warehouse
Phenomenon is copied the presence or absence of in the necessary textural characteristics i.e. grid reflected when administrator or shop-assistant are by serial number and inquiry on labeling
It is forged after attacking by this feature batch.4th kind is that metameric ink is anti-fake, and anti-fake metameric ink is based on metamerism
Identical color is presented using two kinds of substances in the anti-counterfeiting printing technology of phenomenon under a kind of light source, but under another light source,
But the phenomenon that presentation different colours, is realized anti-fake, but the ratio of metamerism is easier to measure, therefore antifalse effect is also difficult to
Guarantee.
In conclusion existing method for anti-counterfeit all has some disadvantages, thus cannot be from preventing fake products at all.
Summary of the invention:
In order to overcome existing various printed matter anti-counterfeiting printing technologies there are the shortcomings that, the present invention is anti-for existing printed matter
Deficiency existing for pseudo- printing technology improves the prior art, proposes a kind of pseudo-random information double exposure digital fluorescence images
Triple anti-fake two-dimension codes, the anti-fake two-dimension code pass through fluorescence falsification preventing technology, metamerism matching algorithm, halftone screen and letter
Concealing technology is ceased, digital fluorescence images and pseudo-random information image are implanted in a width plain code image in 2 D code, generation contains
The special image in 2 D code of digital fluorescence images and pseudo-random information image, the image in 2 D code can show number under ultraviolet light
Word fluorescent image can read the information of plain code image in 2 D code under visible light, and pseudorandom letter can be then shown under infrared light
Image is ceased, can be used to characterize whether printed matter is certified products by digital fluorescence images and pseudo-random information image, if personation is multiple
This two dimensional code is made, because it loses the color characteristics of digital phosphor and metamerism, digital fluorescence images and pseudo-random information
Image will be lost, therefore can identify the brushes product such as marking label, bill, marketable securities with this characteristic with the presence or absence of personation infringement
Problem.
The yellow black four kinds of colors of green product are generally described with CMYK, and metamerism typically refers to tetra- color ink of CMYK of colored printing
Form one group of ratio match matches color ink, and the ink is under visible light it is seen that identical color, i.e., homochromy；And infrared
Under light, because tetra- color ink of CMYK match different generation chromatography differences, i.e., different spectrum, which can show different colors, this
Kind phenomenon is referred to as metamerism phenomenon.
The technical solution adopted by the present invention to solve the technical problems is: generating a width two dimensional code figure by two-dimensional barcode information
Two-dimensional barcode information encryption scramble is generated pseudo-random binary information flow, utilizes pseudorandom two by picture, referred to as plain code image in 2 D code
Color lump in the color lump figure of binary information stream generation pseudo-random information image, pseudo-random information image and plain code image in 2 D code is all
It is divided into black color lump and white two kinds of color lump, for by digital fluorescence images, pseudo-random information image and plain code image in 2 D code weight
Double exposure brush together, press figure fluorescent image first, then using metamerism with color ink by pseudo-random information image and
Plain code image in 2 D code is completely overlapped to be printed on digital fluorescence images, and makes pseudo-random information image and plain code two dimension
The color lump of code image coincides together correspondingly, and the color lump for corresponding coincidence can be divided into four classes, and first kind color lump is bright
Code image in 2 D code requires to show white under visible light and pseudo-random information image request also shows white under infrared light,
Second class color lump plain code image in 2 D code requires to show black and pseudo-random information image request under visible light in infrared light
Under show white, third class color lump plain code image in 2 D code requires to show white under visible light and pseudo-random information image is wanted
It asks and shows black under infrared light, the 4th class color lump plain code image in 2 D code requires to show black and pseudorandom under visible light
Information image requires also to show black under infrared light,
Using tetra- color ink of CMYK, generate by tetra- member ink sets of CMYK at four groups of ratio match match color ink, first assembles
Four color ink ratios of color ink are C1M1Y1K1, and by ratio color matching make first assemble color ink under visible light with it is red
All show white under outer light, the second four color ink ratios for assembling color ink are C2M2Y2K2, and make second by ratio color matching
It assembles color ink and shows black under visible light, white is shown under infrared light, third assembles four color ink ratios of color ink
For C3M3Y3K3, and so that third is assembled color ink by ratio color matching and show white under visible light, show under infrared light black
Color, the 4th four color ink ratios for assembling color ink are C4M4Y4K4, and make the 4th to assemble color ink can by ratio color matching
All show black under light-exposed lower and infrared light,
Plain code image in 2 D code color lump is modulated using the color lump of pseudo-random information image, for pseudo-random information image and plain code two
Dimension code image assembles color ink printing using first with the correspondence color lump for requiring to show white under infrared light under visible light, bright
Code image in 2 D code needs to show under visible light black and pseudo-random information image needs to show under infrared light pair of white
Color lump is answered to assemble color ink printing using second, plain code image in 2 D code needs to show under visible light white and pseudo-random information
Image needs to show the correspondence color lump of black and assembles color ink printing using third under infrared light, pseudo-random information image and bright
Code image in 2 D code assembles color ink print using the 4th with the correspondence color lump for requiring to show black under infrared light under visible light
System is overlapped the region of printing under visible light in digital fluorescence images, pseudo-random information image and plain code image in 2 D code in this way
Plain code image in 2 D code can be shown, and can scan and read plain code two-dimensional barcode information, pseudorandom letter can be shown under infrared light
Cease image, digital fluorescence images can be shown under ultraviolet light, generate hiding digital fluorescence images, pseudo-random information image and
Triple anti-fake two-dimension codes of plain code image in 2 D code.
Detailed description of the invention
The following further describes the present invention with reference to the drawings.
The image in 2 D code that Fig. 1 hides anti-pseudo-random information sum number word fluorescent image generates block diagram.
Fig. 2 hides the anti-identification block diagram of image in 2 D code of anti-pseudo-random information sum number word fluorescent image.
Fig. 3 hides the image in 2 D code genuine/counterfeit discriminating block diagram of anti-pseudo-random information sum number word fluorescent image.
Fig. 4 hides the image in 2 D code product process figure of anti-pseudo-random information sum number word fluorescent image.
Fig. 5 plain code image in 2 D code and the corresponding Local map of anti-pseudo-random information image.
Specific embodiment
In Fig. 1, Fig. 4 and Fig. 5, a width image in 2 D code, referred to as plain code image in 2 D code are generated by two-dimensional barcode information, it will
Two-dimensional barcode information encrypts scramble and generates pseudo-random binary information flow, generates pseudo-random information using pseudo-random binary information flow
Color lump in the color lump figure of image, pseudo-random information image and plain code image in 2 D code is all divided into black color lump and white color lump two
Kind, for by together with the overlapping printing of digital fluorescence images, pseudo-random information image and plain code image in 2 D code, press figure first
Then fluorescent image matches the color ink print that pseudo-random information image and plain code image in 2 D code is completely overlapped using metamerism
Brush is overlapped pseudo-random information image and the color lump of plain code image in 2 D code correspondingly on digital fluorescence images
Together, the color lump for corresponding coincidence can be divided into four classes, and first kind color lump plain code image in 2 D code requires under visible light
Show white and pseudo-random information image request also shows white under infrared light, the second class color lump plain code image in 2 D code is wanted
It asks and shows black under visible light and pseudo-random information image request shows white, third class color lump plain code two under infrared light
Dimension code image request shows white under visible light and pseudo-random information image request shows black, the 4th class under infrared light
Color lump plain code image in 2 D code requires to show black under visible light and pseudo-random information image request is also shown under infrared light
Existing black,
Using tetra- color ink of CMYK, generate by tetra- member ink sets of CMYK at four groups of ratio match match color ink, first assembles
Four color ink ratios of color ink are C1M1Y1K1, and by ratio color matching make first assemble color ink under visible light with it is red
All show white under outer light, the second four color ink ratios for assembling color ink are C2M2Y2K2, and make second by ratio color matching
It assembles color ink and shows black under visible light, white is shown under infrared light, third assembles four color ink ratios of color ink
For C3M3Y3K3, and so that third is assembled color ink by ratio color matching and show white under visible light, show under infrared light black
Color, the 4th four color ink ratios for assembling color ink are C4M4Y4K4, and make the 4th to assemble color ink can by ratio color matching
All show black under light-exposed lower and infrared light,
Plain code image in 2 D code color lump is modulated using the color lump of pseudo-random information image, for pseudo-random information image and plain code two
Dimension code image assembles color ink printing using first with the correspondence color lump for requiring to show white under infrared light under visible light, bright
Code image in 2 D code needs to show under visible light black and pseudo-random information image needs to show under infrared light pair of white
Color lump is answered to assemble color ink printing using second, plain code image in 2 D code needs to show under visible light white and pseudo-random information
Image needs to show the correspondence color lump of black and assembles color ink printing using third under infrared light, pseudo-random information image and bright
Code image in 2 D code assembles color ink print using the 4th with the correspondence color lump for requiring to show black under infrared light under visible light
System, generates triple anti-fake two-dimension codes of hiding digital fluorescence images, pseudo-random information image and plain code image in 2 D code,
In figure 2 and figure 3, in the region of digital fluorescence images, pseudo-random information image and plain code image in 2 D code overlapping printing
Plain code image in 2 D code can be shown under visible light, and can scan and read plain code two-dimensional barcode information, can be shown under infrared light
Existing pseudo-random information image, can show digital fluorescence images under ultraviolet light, pass through digital fluorescence images and pseudo-random information
Image can be used to characterize whether printed matter is certified products, if personation replicates this two dimensional code, because it loses digital phosphor and same
The color characteristics of the different spectrum of color, digital fluorescence images and pseudo-random information image will be lost, therefore can be identified with this characteristic
The brushes product such as marking label, bill, marketable securities are with the presence or absence of personation infringement problem.
Claims (1)
1. a kind of triple anti-fake two-dimension codes of pseudo-random information double exposure digital fluorescence images, it is characterized in that: being given birth to by two-dimensional barcode information
At a width image in 2 D code, referred to as plain code image in 2 D code, two-dimensional barcode information encryption scramble is generated into pseudo-random binary information
Stream generates pseudo-random information image using pseudo-random binary information flow, pseudo-random information image and plain code image in 2 D code
Color lump in color lump figure is all divided into black color lump and white two kinds of color lump, for by digital fluorescence images, pseudo-random information image and
The overlapping of plain code image in 2 D code is printed together, first press figure fluorescent image, then will with color ink using metamerism
Pseudo-random information image and plain code image in 2 D code is completely overlapped is printed on digital fluorescence images, and pseudorandom is believed
The color lump of breath image and plain code image in 2 D code coincides together correspondingly, and the color lump for corresponding coincidence can be divided into four
Class, first kind color lump plain code image in 2 D code require to show under visible light white and pseudo-random information image request infrared
Also show white under light, the second class color lump plain code image in 2 D code requires to show black and pseudo-random information figure under visible light
As requiring to show white under infrared light, third class color lump plain code image in 2 D code requires to show white and puppet under visible light
Random information image request shows black under infrared light, and the 4th class color lump plain code image in 2 D code requires to show under visible light
Black and pseudo-random information image request also shows black under infrared light,
Using tetra- color ink of CMYK, generate by tetra- member ink sets of CMYK at four groups of ratio match match color ink, first assembles
Four color ink ratios of color ink are C1M1Y1K1, and by ratio color matching make first assemble color ink under visible light with it is red
All show white under outer light, the second four color ink ratios for assembling color ink are C2M2Y2K2, and make second by ratio color matching
It assembles color ink and shows black under visible light, white is shown under infrared light, third assembles four color ink ratios of color ink
For C3M3Y3K3, and so that third is assembled color ink by ratio color matching and show white under visible light, show under infrared light black
Color, the 4th four color ink ratios for assembling color ink are C4M4Y4K4, and make the 4th to assemble color ink can by ratio color matching
All show black under light-exposed lower and infrared light,
Plain code image in 2 D code color lump is modulated using the color lump of pseudo-random information image, for pseudo-random information image and plain code two
Dimension code image assembles color ink printing using first with the correspondence color lump for requiring to show white under infrared light under visible light, bright
Code image in 2 D code needs to show under visible light black and pseudo-random information image needs to show under infrared light pair of white
Color lump is answered to assemble color ink printing using second, plain code image in 2 D code needs to show under visible light white and pseudo-random information
Image needs to show the correspondence color lump of black and assembles color ink printing using third under infrared light, pseudo-random information image and bright
Code image in 2 D code assembles color ink print using the 4th with the correspondence color lump for requiring to show black under infrared light under visible light
System is overlapped the region of printing under visible light in digital fluorescence images, pseudo-random information image and plain code image in 2 D code in this way
Plain code image in 2 D code can be shown, and can scan and read plain code two-dimensional barcode information, pseudorandom letter can be shown under infrared light
Cease image, digital fluorescence images can be shown under ultraviolet light, generate hiding digital fluorescence images, pseudo-random information image and
Triple anti-fake two-dimension codes of plain code image in 2 D code.
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| CN113762446A (en) * | 2021-08-13 | 2021-12-07 | 北京印刷学院 | Multicolor spectrum-multispectral composite anti-counterfeiting two-dimensional code based on CMYK common ink |
| WO2022261866A1 (en) * | 2021-06-16 | 2022-12-22 | 东莞市粤美标签印刷有限公司 | Composite message label and printing method therefor |
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| CN113762446A (en) * | 2021-08-13 | 2021-12-07 | 北京印刷学院 | Multicolor spectrum-multispectral composite anti-counterfeiting two-dimensional code based on CMYK common ink |
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