= Unknown)Gmagick::normalizeimage — Enhances the contrast of a color image說明public Gmagick::normalizeimage(int $">

Gmagick::normalizeimage

(PECL gmagick >= Unknown)

Gmagick::normalizeimage — Enhances the contrast of a color image

說明

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.

參數(shù)

channel

Identify which channel to normalize.

返回值

The Gmagick object.

錯誤／異常

錯誤時拋出 GmagickException。