The Imagick class
PHP Manual

Imagick::getImageChannelDepth

(PECL imagick 2.0.0)

Imagick::getImageChannelDepthGets the depth for a particular image channel

说明

int Imagick::getImageChannelDepth ( int $channel )

Gets the depth for a particular image channel.

参数

channel

Provide any channel constant that is valid for your channel mode. To apply to more than one channel, combine channel constants using bitwise operators. Defaults to Imagick::CHANNEL_DEFAULT. Refer to this list of channel constants

返回值

Returns TRUE on success.


The Imagick class
PHP Manual