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A multi-code composite color anti-counterfeiting two-dimensional code and a generation and reading method thereof

A two-dimensional code and color technology, applied in the field of multi-code composite color anti-counterfeiting two-dimensional code and its generation and reading, to achieve anti-counterfeiting application advantages, unique application advantages, and the effect of reducing the area

Active Publication Date: 2019-06-28
BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the security problems and practical application requirements of QR codes in anti-counterfeiting, a multi-code composite color anti-counterfeiting QR code was invented

Method used

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  • A multi-code composite color anti-counterfeiting two-dimensional code and a generation and reading method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Multi-code composite color anti-counterfeiting QR code.

[0050] The two-dimensional code uses one two-dimensional code as the clear code, and 1 to 2 two-dimensional codes as the dark code, using the RGB three-primary color gray scale equation Y=0.3R+0.59G+0.11B, to the two-dimensional code image of the clear code as the carrier Carry out color and grayscale coding with 1~2 secret codes as modulation information, make them combined into one, and generate a multi-code composite color anti-counterfeiting two-dimensional code.

[0051] The above-mentioned color and grayscale coding refers to: according to the grayscale equation Y=0.3R+0.59G+0.11B to discretize the grayscale information generated by mixing the three primary colors of RGB, that is: the three values ​​of R, G, and B are respectively set It is the binarized color information represented by 0 and 1, the RGB three primary colors are mixed according to the binarized combination, and the generated color is 2 3 = ...

Embodiment 2

[0054] A method for generating a multi-code composite color anti-counterfeiting two-dimensional code.

[0055] This method is used to generate the multi-code composite color anti-counterfeiting two-dimensional code of embodiment 1, with reference to figure 1 , including the following steps:

[0056] (1) Generation of two-dimensional code plain code and secret code image

[0057] According to the needs of article coding and anti-counterfeiting, input text information, audio and video or web page network link information into the two-dimensional code generation software, respectively generate clear code two-dimensional code images recognized under visible light and add optical color filter or computer image filter Two dark code QR code images recognized after color processing;

[0058] Among them, the clear code is a two-dimensional code image that can be detected under visible light, and the clear code is also the carrier image of the dark code image, which mainly records non...

Embodiment 3

[0072] A method for reading multi-code composite color anti-counterfeiting two-dimensional codes.

[0073] This reading method is used for reading the multi-code composite color anti-counterfeiting two-dimensional code of embodiment 1, or for reading the multi-code composite color anti-counterfeiting two-dimensional code generated by the method for generating the multi-code composite color anti-counterfeiting two-dimensional code of embodiment 2 code, refer to figure 1 , including the following steps:

[0074] (1) Reading equipment

[0075] The reading device is a portable or fixed reading device added with an RGB three-color optical filter device and a computer image filter processing function;

[0076] (2) QR code clear code reading

[0077] Under visible light, use a mobile phone, a handheld scanner or a fixed scanning device to scan directly to extract the QR code information;

[0078] (3) Optical color filter

[0079] Optical filter refers to R, G, B three primary co...

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Abstract

The invention discloses a multi-code composite color anti-counterfeiting two-dimensional code and a generation and reading method thereof. The method comprises steps of based on an RGB three-primary-color gray scale equation Y=0.3 R+0.59 G+0.11B, and encoding 1-2 two-dimensional code images in the form of secret codes through a grayscale encoder, respectively converting the 1-2 two-dimensional code images into data and addresses, finding corresponding data in a multi-code composite modulator lookup table, realizing multi-code composite information modulation, and generating a multi-code composite color anti-counterfeiting two-dimensional code. According to the multi-code composite color anti-counterfeiting two-dimensional code, the code is scanned under visible light, the code can be directly read through the reading device, the secret code two-dimensional code implanted in the code in a composite mode can be read through optical color filtering processing or computer image color filtering processing, and the multi-code integration and anti-counterfeiting functions are achieved.

Description

technical field [0001] The invention relates to the field of printing anti-counterfeiting, in particular to a multi-code composite color anti-counterfeiting two-dimensional code and a method for generating and reading the same. Background technique [0002] Two-dimensional code anti-counterfeiting is an important problem that must be solved in the actual use of two-dimensional codes. At the same time, in order to increase the information storage capacity of two-dimensional codes and meet different usage scenarios, multiple two-dimensional codes need to be used. Aiming at the security problems of anti-counterfeiting and practical application requirements of two-dimensional codes, a multi-code composite color anti-counterfeiting two-dimensional code was invented. [0003] In solving multi-code compounding and anti-counterfeiting, the present invention is based on the fact that the color two-dimensional code can carry more information through color information modulation at the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06
Inventor 曹鹏罗文秋
Owner BEIJING INSTITUTE OF GRAPHIC COMMUNICATION
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