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中文摘要：
数字 watermarking 技术是为保护版权的一个很好的方法。一个新奇图象 watermarking 计划基于 contourlet 变换被建议。原来的搬运人图象在 contourlet 变换被执行，以后，第二水平 subband 的四个方向是显著的爬的数字 watermarking 在他们被嵌入。试验性的结果证明建议 watermarking 计划可行、简单。嵌入的 watermarking 图象与原来的图象和提取 watermarking 有微小的差别是精确的。它对象噪音增加那样的各种各样的信号处理细微、柔韧，旋转，改变，收割，压缩，亮度变化和马赛克，等等。
英文摘要：
Digital watermarking technology is a very good method for protecting copyright. A novel image watermarking scheme based on contourlet transform is proposed. The original carrier image was executed in contourlet transform and four directions of the second level subband were marked, afterwards, the scrambled digital watermarking is embedded in them. The experimental results show that the proposed watermarking scheme is feasible and simple. The embedded watermarking images have tiny difference with the original images and the extracted watermarking is accurate. It is imperceptible and robust against various signals processing such as noise adding, rotating, altering, cropping, compression, brightness variations and mosaic, etc.
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