Gmagick::setimagechanneldepth

(PECL gmagick >= Unknown)

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

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

Sets the depth of a particular image channel.

channel: Identify which channel to extract: RedChannel, GreenChannel, BlueChannel, OpacityChannel, CyanChannel, MagentaChannel, YellowChannel, BlackChannel.
depth: The image depth in bits.

The Gmagick object on success

错误时抛出GmagickException.