Colour Image Encryption Algorithm Based on 4D Chaotic System
The research on image encryption algorithms is crucial in ensuring image information security.Images contain a large amount of information,and there is strong correlation between adjacent pixels,which can easily cause information leakage during transmission.In order to break the strong correlation between adjacent pixels in images and improve their resistance to attacks,a color image encryption algorithm based on 4D chaotic system DNA encoding is proposed.It uses a 4D chaotic system model to generate chaotic sequences,the encrypted images are scrambled using the generated chaotic sequences and DNA encoding methods.Finally,the image encryption effect and anti-attack capability are compared and verified.The simulation results show that after encrypting the image by using this algorithm,the correlation between adjacent pixels is greatly weakened.Compared to comparative algorithms,this algorithm can effectively encrypt color plaintext images,and has the ability to resist interference and attacks,significantly improving the security of images.It has certain development prospects in the field of color image encryption.
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