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水印会影响图片观感 #2

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2C2C2C opened this issue Apr 26, 2018 · 4 comments
Open

水印会影响图片观感 #2

2C2C2C opened this issue Apr 26, 2018 · 4 comments

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@2C2C2C
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2C2C2C commented Apr 26, 2018

试了一下，载体图像写入水印后，会使图片正中央区域发生变化，有明显痕迹。
@ZanderChang
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嗯是在中央区域有泛红的痕迹。

@2C2C2C
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2C2C2C commented Apr 29, 2018 •
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我试了一下把分块打乱，纹理就分散在图片上了。不过放大一看还是挺明显的23333。

@ZanderChang
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算法应该是基于DCT的，具体的话是参考论文_《JPEG图像版权保护水印算法》_改进的

@2C2C2C
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2C2C2C commented Apr 29, 2018

好的感谢！

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@ZanderChang @2C2C2C