Two-dimensional code anti-counterfeiting method and device based on identification information, and storage medium
A technology of identification information and two-dimensional code, applied in the field of device, storage medium, and two-dimensional code anti-counterfeiting method based on identification information, can solve the problems of complicated operation, unsatisfactory, high cost, and achieve cost reduction, good integrity, and application Scene Unlimited Effects
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Embodiment 1
[0048] figure 1 It shows the flow chart of the two-dimensional code anti-counterfeiting method based on the identification information of the present invention, and the two-dimensional code anti-counterfeiting method based on the identification information includes the following steps:
[0049] S1. The standard two-dimensional code encoding tool generates a standard two-dimensional code image according to the product identification ID and the URL address of the anti-counterfeiting system.
[0050] First start the standard two-dimensional code coding tool, set the product identification ID to be generated, the URL address of the anti-counterfeiting system, and generate a standard two-dimensional code image.
[0051] S2. An anti-counterfeit watermark image generation algorithm generates an anti-counterfeit watermark image according to the anti-counterfeit identification information.
[0052] The anti-counterfeiting watermark image generation algorithm obtains the size of the st...
Embodiment 2
[0074] The difference between this embodiment and Embodiment 1 is: in step S2, the grayscale image is divided into N blocks, N>=2, preferably N=8, and image watermarking technology is used to embed commodity identification ID in each block Associated anti-counterfeiting identification information.
[0075] In step S31, the anti-counterfeiting watermark image is reversibly and losslessly transformed into N blocks of areas, and converted into a safe anti-counterfeiting watermark image, and a volatile feature is added to each area to set the anti-copying security level and improve the anti-counterfeiting two-dimensional Anti-copying of coded images.
[0076] On the basis of Embodiment 1, this embodiment adds volatile features, improves the overall anti-copying performance of the anti-counterfeiting two-dimensional code, and sets the anti-copying security level, which can be set according to actual needs.
Embodiment 3
[0078] In this embodiment, on the basis of embodiment 2, the calculation of the degree of loss of volatile characteristics is added to improve the anti-copying property, and the anti-copying security level can be set in this way, and the substantial differences from embodiment 2 are as follows: figure 2 As shown: step S5 is changed accordingly, and the changed step S5 is recorded as step S5'. In step S5', on the basis of step S5, set the permissible threshold of volatile feature loss degree, and use the anti-counterfeiting watermark recognition algorithm to calculate the volatile feature loss degree of the security anti-counterfeiting watermark image, for example: the security anti-counterfeiting watermark image has N blocks of regions , calculate that there are m existing volatile features, and the loss degree of volatile features is equal to (N-m) / N. In step S5', the judgment of the degree of loss of volatile characteristics is also added, that is, when the anti-counterfeit...
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