基于分形编码的遥感图像数字水印技术研究

Research and application of digital watermarking for remote sensing image based on fractal coding

将基于分形编码的水印算法应用于遥感图像的版权保护。该算法特点是提取水印时不需要原始图像信息,算法是盲的;以二值图像作为水印,水印信息量大;在嵌入操作前,对二值水印图像进行了Arnold置乱,提高了算法的鲁棒性。实验表明该算法具有较好的鲁棒性,为遥感图像的版权保护提供了有效算法。

Digital watermarking algorithm on fractal coding was developed using the direct to copyright protection of remote sensing image, and was blind. The watermarking was binary image that contained a large number of information. The robustness of the algorithm could be improved because Arnold scrambling was applied to binary image before the watermarking embeds. It is proved by test that the algorithm with good robustness can provide a effective method for the copyright protection of remote sensing images.