Digital Image Scrambling Algorithm Based on Chaotic Sequence and Decomposition and Recombination of Pixel Values

10.6633/IJNS.201505.17(3).11

Dong Wang；Chin-Chen Chang；Yi-Ning Liu；Guo-Xiang Song；Yun-Bo Liu

Chaotic sequence ； decomposition ； image scrambling ； recombination

International Journal of Network Security

17卷3期（2015 / 05 / 01）

322 - 327

英文

Based on chaotic sequence and decomposition and recombination of pixel values, a new digital image scrambling algorithm is proposed in the paper. While scrambling image pixel values, this new algorithm is able to change the spatial position of pixel, simultaneously scrambling both position and pixel values. Experiments show that the new algorithm is larger in key space, highly efficient, sensitive to secret keys, capable of changing grayscale feature of images, satisfactory in scrambling result, and resistant to attacks to some extent.