﻿ 基于Logistic混沌映射的比特级数字图像加密算法研究

# 基于Logistic混沌映射的比特级数字图像加密算法研究Research on Bit-Level Digital Image Encryption Algorithm Based on Logistic Chaotic System

Abstract: A bit-level digital image encryption method based on Logistic chaotic system is proposed. Each pixel value of a grayscale image uses eight-bit binary numbers, and the two-dimensional gray image is converted to a one-dimensional string containing 0 and 1. We generate the Logistic chaotic sequence with the given initial value, and then sort the chaotic sequence to obtain a location index. According to the location index, the original image is scrambled in bit-level. The pixels fusion and pixel scrambling encryption of an image are realized simultaneously. Experiments show that the algorithm is simple, safe and efficient.

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