Method and device for generating and reading synthetic color two-dimensional image code
A two-dimensional image and color technology, applied in the field of two-dimensional image codes, can solve the problem that the color information does not contain any valid information, etc.
Active Publication Date: 2022-01-07
BEIJING D9ING INST OF INFORMATION ENG CO LTD +1
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[0005] The embodiment of the present invention discloses a method and device for generating and reading a synthetic color two-dimensional image code, which is used to solve the problem that the color information in the existing color two-dimensional image code does not contain any valid information
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[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0060] In order to make the color information in the color two-dimensional image code contain effective information, rather than just bring visual impact to people, the embodiment of the present invention provides a method and device for generating and reading a synthetic color two-dimensional image code.
[0061] Firstly, a method for generating a synthetic color two-dimensional image code provided by an embodiment of the present invention will be introduced below....
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The embodiment of the present invention discloses a method and device for generating and reading a synthetic color two-dimensional image code. The generating method includes: acquiring the first pixel matrix and characteristic information of the first black and white two-dimensional image code, and obtaining The second pixel matrix of the second pixel matrix and the third pixel matrix of the third black-and-white two-dimensional image code, the first pixel matrix is quantized into the first quantization matrix, the second pixel matrix is quantized into the second quantization matrix, and the third pixel matrix Quantize into a third quantization matrix, combine the three quantization matrices into a fourth pixel matrix, determine the color corresponding to the elements in the fourth pixel matrix, and fill the determined color into the data of the color two-dimensional image code to be generated storage area, and fill the characteristic information in the characteristic information region into the characteristic information region of the current color two-dimensional image code. The color information in the color two-dimensional image code generated by this method contains effective information, not just visual impact.
Description
technical field [0001] The invention relates to the field of two-dimensional image codes, in particular to methods and devices for generating and reading synthetic color two-dimensional image codes. Background technique [0002] The research on two-dimensional image codes at home and abroad began in the late 1980s, and a variety of code systems have been developed in the research on the symbol representation technology of two-dimensional image codes, such as PDF417, QR Code, Code 49 and so on. In real life, black-and-white two-dimensional image codes are more commonly used. Specifically, it is encoded in a rectangular space through different distributions of black and white pixels in the matrix to record data information. Generally, it has a data storage area and the feature information area, wherein the distribution form of black and white pixels in the data storage area is used to store the data information that needs to be included in the two-dimensional image code, and t...
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IPC IPC(8): G06K19/06G06K7/14
CPCG06K7/1417G06K19/06037G06K7/10
Inventor 于学东牛少彰王勇李增欣韦俊康
Owner BEIJING D9ING INST OF INFORMATION ENG CO LTD