CN109919274A - Stealthy complementary identification anti-counterfeit method of credentials - Google Patents
Stealthy complementary identification anti-counterfeit method of credentials Download PDFInfo
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- CN109919274A CN109919274A CN201811566158.XA CN201811566158A CN109919274A CN 109919274 A CN109919274 A CN 109919274A CN 201811566158 A CN201811566158 A CN 201811566158A CN 109919274 A CN109919274 A CN 109919274A
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Abstract
A kind of stealthy complementary identification anti-counterfeit method of credentials, the method for anti-counterfeit, a width image in 2 D code is made of two-dimension code anti-counterfeit information first, then the image in 2 D code is divided into two parts, and a part after segmentation is printed on certificate with color ink using metamerism, another portion after segmentation is printed on a piece of thin plate on the key, on certificate and thin plate generates a kind of stealthy complementary image in 2 D code on the key, only under infrared light by a part of image in 2 D code being printed on certificate and be printed on another part image in 2 D code of thin plate on the key merge constitute a width complete image in 2 D code when, correct two-dimensional barcode information can be just obtained by scanning, certificate can be identified in this way with the presence or absence of personation infringement problem.
Description
Technical field:
The present invention relates to a kind of anti-counterfeit method of credentials, especially a kind of stealthy complementary identification anti-counterfeit method of credentials, the certificate false proof
Technology can be used in the anti-counterfeit printing of various certificates.
Background technique:
Certificate serves to demonstrate how the certificate and file of identity, experience etc., such as resident identification card, passport, employee's card, student's identity card, finishes
Industry card etc., the fraud of various forms of certificates has given society and the people to bring serious threat, and certificate false proof technology is main
There are digital encryption, digital watermarking, laser anti-false sign, cipher counterfeit-proof labeling, texture anti-fake, biological identification technology etc., with
The development of science and technology, certificate forge means also in the continuous improvement, and simple certificate false proof technology is no longer satisfied certificate
Anti-fake needs, it is necessary to constantly promote certificate false proof technology, society and the legitimate interests of the people could be protected, maintain the steady of society
Fixed and safety.
Summary of the invention:
In order to improve the reliability and safety of certificate false proof, the present invention is for deficiency existing for existing certificate false proof to existing card
Part anti-counterfeiting technology is improved, and a kind of stealthy complementary identification anti-counterfeit method of credentials, the method for anti-counterfeit, first by two dimension are proposed
Code anti-counterfeiting information constitutes a width image in 2 D code, and the image in 2 D code is then divided into two parts, and a part is known as short in size figure
Picture, another part are known as complement code image, the complete image in 2 D code of one width of composition that short in size image and complement code image can be complementary, benefit
Match color ink by short in size printing image on the blank area of certificate, by complement code printing image in a piece of thin plate key with metamerism
On, on certificate and thin plate generates a kind of stealthy complementary image in 2 D code on the key, under visible light the short in size image print of certificate
Area processed shows blank image, and short in size image is shown under infrared light, under infrared light by the short in size image being printed on certificate and
It is printed on the complement code image of thin plate on the key to merge when constituting the complete image in 2 D code of a width, could pass through to scan and obtain
Correct two-dimensional barcode information is taken, certificate can be identified in this way with the presence or absence of personation infringement problem.
Metamerism typically refers to yellow black four member ink sets of green product into one group of ratio match with color ink, this group of ink exists
It is seen that identical color, i.e., homochromy under visible light；And under infrared light because yellow black four color ink of green product match different productions
The spectral difference that adds lustre to is different to show different colors, i.e., different spectrum, this phenomenon is referred to as metamerism phenomenon.
The technical solution adopted by the present invention to solve the technical problems is: adjust yellow black four color ink of green product matches color ratio
Example generates a kind of metamerism with color ink, should show under visible light white with color ink, and show black under infrared light,
A width image in 2 D code is made of two-dimension code anti-counterfeit information, and the image in 2 D code is divided into two parts, and a part is known as lacking
Code image, another part are known as complement code image, the complete two dimensional code figure of one width of composition that short in size image and complement code image can be complementary
Color lump in the color lump figure of picture, short in size image and complement code image is all divided into two kinds, and one is black color lump, another kind is white color
Block,
By short in size printing image in the white space on certificate, by complement code printing image on a piece of white substrate thin plate, and
The thin plate for being printed with complement code image is known as thin plate key, for the white color in the color lump figure of short in size image and complement code image
Block, it is desirable that under visible light with all show white under infrared light, using ordinary white ink print, for short in size image and complement code
Black color lump in the color lump figure of image, it is desirable that show white under visible light, show black under infrared light, matched using above-mentioned
Color ink printing, the short in size image that is printed on the white space of certificate in this way and is printed on the complement code image of thin plate on the key,
Showing white under visible light, short in size image and complement code image can just display under infrared light,
In truth identification, the complement code image of thin plate on the key is placed on certificate under infrared light, on the key using thin plate
Short in size image constitutes the complete image in 2 D code of a width together on complement code image and certificate, is obtained by scanning correct two dimensional code
Personation and the infringement row of certificate can be effectively prevented in information under infrared light by short in size image and the identification of complement code image complementation
For.
Detailed description of the invention
The following further describes the present invention with reference to the drawings.
Fig. 1 image in 2 D code.
Fig. 2 short in size image.
Fig. 3 complement code image.
Fig. 4 thin plate key image.
The Local map of Fig. 5 short in size image and complement code image.
Specific embodiment
The color matching ratio for adjusting yellow black four color ink of green product generates a kind of metamerism with color ink, should exist with color ink
Show white under visible light, show black under infrared light,
In Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a width image in 2 D code 1 is made of anti-counterfeiting information, and image in 2 D code 1 is divided
Two parts are segmented into, a part is known as short in size image 2, and another part is known as complement code image 3, and short in size image 2 and complement code image 3 can be mutual
Color lump in the color lump figure of the complete image in 2 D code 1 of one width of composition of benefit, short in size image 2 and complement code image 3 is all divided into two kinds,
One is black color lump 9, another kind is white color lump 8,
Short in size image 2 is printed in the white space on certificate, complement code image 3 is printed on thin plate key 7, for short in size
White color lump 8 in the color lump figure of image 2 and complement code image 3, it is desirable that under visible light with all show white under infrared light, use
Ordinary white ink printing, for the black color lump 9 in the color lump figure of short in size image 2 and complement code image 3, it is desirable that under visible light
Show white, show black under infrared light, is printed, be printed on certificate white space in this way with color ink using metamerism
Short in size image 2 and the complement code image 3 that is printed on thin plate key 7, show white under visible light, the short in size figure under infrared light
As 2 and complement code image 3 can just display,
When truth identification, the complement code image 3 on thin plate key 7 and the short in size image 2 on certificate are put together under infrared light
The complete image in 2 D code 1 of a width is constituted, the information of correct image in 2 D code 1 is obtained by scanning, passes through under infrared light
The personation and abuse of certificate can be effectively prevented in short in size image 2 and the complementary identification of complement code image 3.
Claims (4)
1. a kind of stealthy complementary identification anti-counterfeit method of credentials, it is characterized in that: image in 2 D code is divided into two by the method for anti-counterfeit
Point, a part is known as short in size image, and another part is known as complement code image, and composition one of short in size image and complement code image complementation is complete
Whole image in 2 D code matches color ink by short in size printing image on certificate, by complement code printing image one using metamerism
On the key, on certificate and thin plate generates a kind of stealthy complementary image in 2 D code, stealth complementation two dimensional code to piece thin plate on the key
Image shows blank image under visible light, and image in 2 D code only can be just shown under infrared light, will printing under infrared light
Short in size image on certificate merges the composition complete two dimensional code of one width with the complement code image of thin plate on the key is printed on
When image, it can be just obtained by scanning correct two-dimensional barcode information, certificate can be identified in this way with the presence or absence of personation
Infringement problem.
2. stealthy complementary identification anti-counterfeit method of credentials according to claim 1, it is characterized in that: adjusting the yellow black four colors oil of green product
The color matching ratio of ink generates a kind of metamerism with color ink, which shows white with color ink under visible light,
Show black under infrared light.
3. stealthy complementary identification anti-counterfeit method of credentials according to claim 1, it is characterized in that: it is oily to be matched colors using metamerism
Ink by short in size printing image on the white space of certificate, by complement code printing image a piece of thin plate on the key, under visible light
The complement code image of short in size image and thin plate on the key on certificate white space shows white, short in size image and benefit under infrared light
Code image can just display.
4. stealthy complementary identification anti-counterfeit method of credentials according to claim 1, it is characterized in that: the thin plate refers to paper
Plate, plastic plate, aluminium sheet, iron plate, copper sheet and stainless steel plate etc..
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566158.XA CN109919274A (en) | 2018-12-21 | 2018-12-21 | Stealthy complementary identification anti-counterfeit method of credentials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811566158.XA CN109919274A (en) | 2018-12-21 | 2018-12-21 | Stealthy complementary identification anti-counterfeit method of credentials |
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| CN109919274A true CN109919274A (en) | 2019-06-21 |
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| CN201811566158.XA Pending CN109919274A (en) | 2018-12-21 | 2018-12-21 | Stealthy complementary identification anti-counterfeit method of credentials |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110363764A (en) * | 2019-07-23 | 2019-10-22 | 安徽大学 | A kind of driving license type information integrality detection method based on inter-frame difference |
| CN111800256A (en) * | 2020-07-03 | 2020-10-20 | 福建正孚软件有限公司 | Old people two-dimensional code electronic license application method and system |
-
2018
- 2018-12-21 CN CN201811566158.XA patent/CN109919274A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110363764A (en) * | 2019-07-23 | 2019-10-22 | 安徽大学 | A kind of driving license type information integrality detection method based on inter-frame difference |
| CN110363764B (en) * | 2019-07-23 | 2022-03-11 | 安徽大学 | Method for detecting integrity of running license printing information based on interframe difference |
| CN111800256A (en) * | 2020-07-03 | 2020-10-20 | 福建正孚软件有限公司 | Old people two-dimensional code electronic license application method and system |
| CN111800256B (en) * | 2020-07-03 | 2023-05-19 | 福建正孚软件有限公司 | Old people two-dimensional code electronic license application method and system |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190621 |
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| WD01 | Invention patent application deemed withdrawn after publication |