The Imagick class
PHP 手册

Imagick::separateImageChannel

(PECL imagick 2.0.0)

Imagick::separateImageChannelSeparates a channel from the image

说明

bool Imagick::separateImageChannel ( int $channel )
Warning

本函数暂无文档,仅有参数列表。

Separates a channel from the image and returns a grayscale image. A channel is a particular color component of each pixel in the image.

参数

channel

返回值

Returns TRUE on success.

错误/异常

Throws ImagickException on error.


The Imagick class
PHP 手册