Two-dimensional code generation method and decoding method and device

Abstract

The invention discloses a two-dimensional code generation method and decoding method and device. The generation method comprises the steps that multisystem coding is performed on hidden information so that multisystem hidden coded information can be generated; standard information is coded by selecting a corresponding two-dimensional code version so that standard coded information to be determined can be generated; a two-dimensional code bit matrix is generated by selecting corresponding mask codes and the number of black spots in the bit matrix is extracted; the selected mask codes and the two-dimensional code version are updated according to the number of the black spots and the length of the hidden coded information so that the finally selected mask codes and the two-dimensional code version can be determined; the standard coded information is generated according to the finally selected mask codes and the two-dimensional code version; and the two-dimensional code is generated according to the hidden coded information and the standard coded information. According to the method, multiple colors are used for carrying more information on the basis of the conventional block spots of the QRCODE spot matrix, and whether the code is the personally generated code can be distinguished by utilizing public awareness of the QRCODE and the hiding performance of the multicolor coded information.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a method and device for generating a two-dimensional code, and a method and device for decoding a two-dimensional code. Background technique [0002] Currently commonly used anti-counterfeiting technologies include barcode anti-counterfeiting, two-dimensional code anti-counterfeiting and so on. A barcode is a group of bar and space symbols arranged according to certain coding rules to represent information composed of certain characters, numbers and symbols. One-dimensional barcode is referred to as one-dimensional code. It is compiled into a series of characters composed of "0" and "1" according to the width of a group of horizontal bars. The binary characters are coded according to certain system conventions. . A barcode that stores information in a two-dimensional space in the horizontal and vertical directions is called a two-dimensional barcode (2-dimensional b...

AI Technical Summary

Problems solved by technology

[0004] However, the current problem is that the color types are simply increased from two types to multiple types, and the multi-color information is not specially processed. That is to say, the color two-dimensional code generated by the existing two-dimensional code technology The information contained in the code is all standard QRCODE information, and does not contain special non-standard QRCODE information (that is, hidden information), such as the identity information representing the generator of the QR code, etc., making the QR code generation impossible. I have the effect

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