Image-scrambling Encryption Algorithm Based on Discrete Wavelet Transform
Zhang Na · Modern Electronics Technique · 2008
Based on two-dimension wavelet transformation,an image encryption algorithm is proposed.This method decomposes the image information,then using SIN chaos mapping,and bringing image encryption to access.To decryption,it first inverses mapping the coefficient,two dimension wavelet re-discompose,realizes the decryption of the original image.The result shows that this algorithm is effective.