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一种基于DCT变换域的数字水印技术，其中用到了伪随机数生气器技术随机产生水印信号-DCT transform domain based on digital watermarking technology, which uses a pseudo-random number of randomly generated angry watermark signal device
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未经任何变化的原始图像上分块嵌入水印信息，且用伪随机序列作为水印，空域图像水印。-Without any change in the original image block embedded watermark information, pseudo-random sequence as a watermark, the airspace image watermark.
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空域水印图像，没采用分块技术，，水印为伪随机序列，算是图像水印初学者该会的第一个程序，在此基础上进一步深入学习。-Airspace watermark image, not using the block technique, the watermark is a pseudo-random sequence can be regarded as image watermarking beginners the first program, on the basis of further stu
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提出一种新颖的基于HVS (Human Visual System) 和DCT (Discrete Cosine Transform)的数字水印算法。为保证视觉透明性和鲁棒性, 通过将二值水印图像映射为标准正态分布的伪
随机实数序列, 并利用HVS 的特性, 将水印嵌入宿主图像中频部分。-Propose a novel digital watermarking algorithm based on the HVS (Human Visual System) and DCT (Discrete
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基于dct的伪随机序列的数字图像水印，算法较为简单，鲁棒性一般，不能很好地抵御噪声攻击-Dct pseudo-random sequence-based digital image watermarking algorithm is relatively simple and general robustness against noise attack can not
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