Gmagick::setimagechanneldepth

(PECL gmagick >= Unknown)

Gmagick::setimagechanneldepth — Sets the depth of a particular image channel

说明

public Gmagick::setimagechanneldepth(int $channel, int $depth): Gmagick

Sets the depth of a particular image channel.

参数

channel

One of the Channel constant (Gmagick::CHANNEL_*).

depth

The image depth in bits.

返回值

The Gmagick object.

错误／异常

错误时抛出 GmagickException。