Research On Chaos Encryption Anti-counterfeit Label Recognition Algorithm Based On SWT

In recent years,the spread of counterfeit goods has spread all over the world,and the scope of infringed goods has also greatly increased.Certain consumer products,especially some very expensive or well-known brands,or some brands that are easy to copy cheaply,have become common counterfeit objects for bad merchants.Counterfeiters attempt to obtain huge profits by deceiving consumers into making them mistakenly believe that they are buying legal goods,or by imitating genuine products to confuse genuine products with fake products.This not only damages the interests of consumers,but also greatly reduces the brand's recognition and damages the image of the forged brand.In order to increase consumer's credibility of products and protect the interests of merchants,effective anti-counterfeiting technology becomes particularly important.In this digital era of rapid development,major industries have combined with the information industry and burst out with vitality.As a product of the new era,cloud technology bears important information of various industries.Most merchants choose to upload anticounterfeit labels to the cloud,in order to achieve rapid identification of anti-counterfeit labels.In recent years,many criminals have continuously attacked third-party cloud systems in order to steal effective anti-counterfeiting information,resulting in an endless stream of information leaks.Therefore,in order to improve the robustness and security of the anticounterfeit label automatic identification algorithm,this paper has made further research in the aspects of feature extraction and anti-counterfeit label chaotic encryption.The anticounterfeit recognition algorithm of chaos encryption based on SWT is proposed.This article mai nly did the fo llowing research work:(1)The chaotic encryption method is studied.The security label image is transformed from space domain to frequency domain,and the obtained frequency domain coefficients are combined with different chaotic encryption techniques to encrypt the security label image.(2)Research on image feature extraction technology of encrypted anti-counterfeit label.The stationary wavelet transform is used to extract the feature of the encrypted anticounterfeit label image.(3)The robustness of the algorithm of chaotic encryption anti-counterfeiting tags under attack experiments is studied.The performance of the encryption anti-counterfeiting algorithm against conventional attacks such as Gaussian attack,median filtering attack,and geometric attacks such as rotation attack and shear attack is studied to verify the robustness of the algorithm.(4)The key space of chaotic encryption is studied: Based on Logistic chaos,Chen's chaos,and Cai's chaos,three kinds of anti-counterfeit identification algorithms for chaos encryption are proposed,and the key space is calculated by key sensitivity test to verify the security of the algorithm;(5)A comparative analysis of the robustness,key space and other indicators of the three SWT-based chaotic encryption anti-counterfeiting identification algorithms.The optimal algorithm for automatic identification of authentic anti-counterfeit tags is summarized,and the research focus and research direction are pointed out for the next research work in the future.