Visual quick response code generation method based on Sobel operator

Abstract

The invention discloses a visual quick response (QR) code generation method based on a Sobel operator. The method comprises the steps of (1) performing Gaussian smoothing processing on an original image I to obtain a processed image Q1; (2) performing edge detection on the image Q1 by use of a Sobel algorithm to obtain a gradient modular diagram T; (3) calculating a threshold value XT of the gradient modular diagram T by use of an Otsu's method, and processing the gradient modular diagram T to generate a color contour diagram C; (4) performing corrosion processing on the color contour diagramC; (5) generating an original quick response code Q which includes corresponding data information, wherein a version number and an error-correction level need to be determined by a user, and meanwhilethe size of the original quick response code Q is determined; ( 6) adjusting the size of a color contour diagram C1 to obtain a color contour diagram C2; and (7) performing visual encoding on the original quick response code Q and the color contour diagram C2 to generate a visual quick response code image QR. The visual quick response code generated by the method has high anti-counterfeiting performance and better visual effect.

Description

technical field [0001] The invention belongs to the technical field of two-dimensional code anti-counterfeiting, and relates to a method for generating a visual two-dimensional code based on a Sobel operator. Background technique [0002] With the rapid development of economy and technology, the demand for commercial anti-counterfeiting is increasingly strong. As a carrier of information dissemination, two-dimensional codes are playing an increasingly important role in the field of anti-counterfeiting. Two-dimensional barcode is a special barcode technology, referred to as two-dimensional code, which was first invented in Japan. At present, commonly used or well-known two-dimensional code coding mechanisms include DataMatrix, Maxi Code, QRCode, Hanxin code, etc., among which the fast response QR code ( QR code), developed by Denso Wave Company, later became an international standard. Although originally designed for the manufacturing industry, it is now ubiquitous and appli...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a visual two-dimensional code generation method based on a Sobel operator, which solves the problems of single form of expression, poor anti-counterfeiting performance, and poor visual experience of the existing visual two-dimensional code

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