Visual security encryption method, system, and device based on color traffic images

A visual security encryption system based on color traffic images, comprising:

• a parameter acquisition module configured to generate parameters and initial values for a two-dimensional chaotic map based on color traffic image information;
• a sparsification module configured to perform sparsification processing on the color traffic image;
• an optimization module configured to generate and optimize a measurement matrix using a chaotic system, SVD, and column vector normalization;
• a scrambling module configured to apply three-dimensional spiral scrambling to the sparsified image to generate an encrypted image;
• a compression module configured to compress the encrypted image using the optimized measurement matrix;
• and
• an encryption module configured to perform IWT on a carrier image and embed the compressed encrypted image into the least significant bits of the carrier image's high-frequency components.

A computer device comprising:

• a memory, a processor, and a computer program stored on the memory and executable by the processor, wherein the processor executes the computer program to implement the visual security encryption method based on color traffic images, wherein the visual security encryption method comprises steps of:
• generating parameters and initial values for a two-dimensional chaotic map based on color traffic image information;
• performing sparsification processing on the color traffic image;
• generating a measurement matrix via a chaotic system, and optimizing the measurement matrix using singular value decomposition (SVD) and column vector normalization;
• applying three-dimensional spiral scrambling to the sparsified color traffic image to obtain an encrypted image;
• compressing the encrypted image using the optimized measurement matrix to obtain a compressed encrypted image;
• performing an integer wavelet transform (IWT) on a carrier image and embedding the compressed encrypted image into the lowest bits of the high-frequency components of the carrier image to generate a final encrypted image.