关键词：混沌序列; 噪声敏感度; 自适应盲检测水印算法; 鲁棒性; 感知透明性
adaptive blind watermarking based on chaotic sequence and noise sensitivity
xu fei, xue shengjun, teng xuan
（college of computer science & technology, wuhan university of technology, wuhan 430063, china)
abstract:by integrating existing technology used in chaotic sequence and noise sensitivity, a novel adaptive blind watermark algorithm was proposed. in order to enhance robustness of the embedded watermarking, a chaotic sequence was changed into watermark bits by cellular automata processing and smoothing. the embedding procedure operates adaptively in the domain of intermediate coefficients, according to the noise sensitivity. robustness of it on selected attacks like gaussian noise, median filtering, jpeg compression and cropping was tested. in addition, the perceptual transparency had been improved as well. furthermore, the watermark can be detected without the original image.......