数码影像USM锐化的三把宝刀

来源 :中国摄影家 | 被引量 : 0次 | 上传用户：degr5

【摘要】

：

USM锐化的三个选项:数量—锐化的强烈程度;半径—锐化作用于多少边缘像素,阈值—在多大反差的灰阶上起作用。USM锐化通过三个选项变化来控制锐化程度,这三个选项是数量、半径和阈值,关于这三个选项的作用,很多文章和书中都有涉及,有些对这三项的解释过于繁琐,我在这里试着用最简单和最便于理解、记忆的方式来说明它们。

【作者】

：

刘宽新

【出处】

：

中国摄影家

【发表日期】

：

2010年03期

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数码影像USM锐化的三把宝刀

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