摘要: … Since edges are the regions where the brightness or the hue is biased, the regions where the entropy is small may be edges. Therefore, we may extract edges by operating the entropy …
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Akira Shiozaki, Image enhancement in a dithered picture Graphical Models \/graphical Models and Image Processing \/computer Vision, Graphics, and Image Processing. ,vol. 24, pp. 107- 113 ,(1983) , 10.1016/0734-189X(83)90022-1