Research on digital image encryption algorithm based on compound chaotic image second-scrambling
Mogen Xue · Journal of Hefei University of Technology · 2009
An image encryption algorithm based on compound chaotic image second-scrambling is proposed for solving the steady window problem of the single chaotic map sequence and reducing the computing work of scrambling encryption of the image.The algorithm combines Chebyshev mapping with logistic mapping which are both controlled by a random initial parameter to encrypt the image,and the encryption process is disturbing color values of each image point and the array of original images based on chaotic second-scrambling.The experiment result shows that the algorithm improves the steady window problem of the single chaotic sequence with better encryption effect,less calculation and high speed,and it is also fit for real-time encryption.