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A Dynamic Image Encryption Algorithm Based on Improved Ant Colony Walking Path Thought

机译：A Dynamic Image Encryption Algorithm Based on Improved Ant Colony Walking Path Thought

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摘要

According to the existing chaotic image encryption technology, this paper designs an algorithm based on the thought of improved ant colony walking path to encrypt the image. In this paper, the key is generated using SHA-512, and the required chaotic sequence is generated using the PWLCM one-dimensional chaotic system. First, the image is scrambled by the row and column indexes by the improved algorithm so that complete the first scrambling. Then, the image is converted into one-dimensional array, and randomly scrambled according to the designed algorithm. Finally, the one-dimensional array is divided into two segments with the middle point serving as the boundary, and each segment is created using distinct rules based on the array's number and parity to complete the diffusion, after which the array is restored to its original size. Simulation results show that this algorithm has better performance and robustness in encryption compared with other algorithms.

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