Abstract
Aiming at the problem of improving image security in the process of transmission line monitoring under the condition of limited computing resources, a security encryption algorithm for transmission line monitoring images is proposed. The algorithm uses the information of the image itself as the original key, realizes the secure sharing of the original key, and expands the key space. On this basis, the algorithm uses chaotic maps to perform diffusion encryption and scrambling encryption on the image. Experimental results show that the proposed algorithm can effectively resist brute force attack, brute force attack and statistical analysis attack, and can effectively improve the security of the monitoring image. It has a broad application prospect in the field of transmission line visual monitoring.