The Technology of Image Encrypting Based on Wavelet and Chaotic System
Yonghong Zhang · Microcomputer Information · 2010
Aim This paper proposes a quckly image encrypting algorithm based on Wavelet Transformation and chaos sequence.Method Firstly,the serect image is scrambled;Secondly,the secret image and the chaotic image generated by extended chaotic sequence is decomposed into low-frequency and high-frequency images,then the wavelet coefficients are calculated,the fused wavelet coefficients are composed,and the fusion image is got by inverse wavelet transform.Finally,the performance of the fusion algorithm is evaluated and analysed.Results and Conclusion Our experimental results show that the proposed method is simple and viable