Image encryption method based on genetic algorithm

The invention discloses an image encryption method based on a genetic algorithm, and the method comprises the steps: firstly converting a plaintext image into a one-dimensional array, i.e., a plaintext image DNA sequence; then, adopting a logistic chaotic mapping function to perform mapping to generate a chaotic sequence, and converting the chaotic sequence into a specified DNA sequence; and performing exclusive OR operation on the specified DNA sequence and the plaintext image DNA sequence, calculating an entropy value, and finding the DNA sequence with the maximum entropy after exclusive ORoperation by adopting a genetic algorithm to serve as a ciphertext image. According to the image encryption method based on the genetic algorithm, the genetic algorithm is taken as a main line, and the Logistic chaotic mapping function, the DNA conversion rule and the genetic algorithm are respectively used, so that the correlation between two adjacent pixels is effectively reduced, and the security and robustness of imag