Detail Image

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今天yu在讲”Fast Bilateral Filtering for the Display of High-Dynamic-Range Images“的时候，发现这里用的detail image跟jian sun的07 siggraph deblur paper里的detail image一摸一样。都是现在把detail image保护起来，对原始image处理完后，再把detail image 加回来，这样就可以保持fine detail了。这种分解操作很值得学习。

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