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Gmagick::normalizeimage

(PECL gmagick >= Unknown)

Gmagick::normalizeimageEnhances the contrast of a color image

说明

public Gmagick::normalizeimage ( int $channel = ? ) : Gmagick

Enhances the contrast of a color image by adjusting the pixels color to span the entire range of colors available.

参数

channel

Identify which channel to normalize

返回值

The Gmagick object on success

错误/异常

错误时抛出 GmagickException

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