The experimental results show that it is easy and reliable to extract the watermark from degenerated image.
实验表明，对加入水印的图像进行图像退化处理后，仍然能方便、可靠地检测出嵌入的水印信息。
With resorting to the original image, it is easy and reliable to extract the text watermark.
借助于原始图像，能方便、可靠地检测出嵌入的文字水印。
So this scheme is an easy and high efficient method to embed watermark. And the capacity of watermark can be doubled by judging four regions.
由此表明，该算法是一种简单、高效的视频水印隐藏方案，并且细化区域的分类，可以达到使隐藏的水印信息加倍的效果。
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