介绍了图像水印技术目前所采用的主要算法及其各自的优缺点，归纳了成功的图象水印方案必须解决的关键问题。
The main algorithms and their merits and shortcomings of video watermarking technology are introduced here. And then induced the key questions which a perfect image watermarking algorithm must solve.
介绍了图像水印技术目前所采用的主要算法及其各自的优缺点，归纳了成功的图象水印方案必须解决的关键问题。
The main algorithms and their merits and shortcomings of video watermarking technology are introduced here. And then induced the key questions which a perfect image watermarking algorithm must solve.
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