辛古列尔价值领域中的塔图阿格·罗布斯特和阿韦格尔
Tatouage Robuste Et Aveugle Dans Le Domaine Des Valeurs Singulieres
摘要：
数字水印是在图像中插入一个标记，以保护图像不被复制。旧方法的提取过程的繁重促使我们在奇异值域中寻找一种新的算法，这将是盲目的：它不需要原始图像来提取标记。我们提出了一种新的鲁棒方法，该方法包括将标记的位插入奇异值矩阵。实验结果表明，该算法对JPEG压缩、GIF压缩和直方图扩展具有较好的鲁棒性。因此，我们能够获得PSNR = 49，63 dB。
英文摘要：
Digital watermarking consists on inserting a mark into an image to protect it against copies. The heaviness of the extraction procedure with the old methods urged us to look for a new algorithm in the singular values domain which would be blind : it does not require the original image to extract the mark. We propose a new robust method which consists on inserting the bits of the mark into the singular values matrix. Contrary to most of the watermarking algorithms, it is blind and the results show that our method is robust against the JPEG compression, the reduction of colors (GIF) and the histogram spreading. So, we were able to obtain PSNR = 49,63 dB.
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