Imagick::setImageAlphaChannel
(PECL imagick 2 >= 2.1.0, PECL imagick 3)
Imagick::setImageAlphaChannel — Sets image alpha channel
Description
public Imagick::setImageAlphaChannel ( int $mode ) : bool
Activate or deactivate image alpha channel. The mode is one of the Imagick::ALPHACHANNEL_* constants. This method is available if Imagick has been compiled against ImageMagick version 6.3.8 or newer.
Parameters
-
mode -
One of the
Imagick::ALPHACHANNEL_*constants
Return Values
Returns true on success.
Errors/Exceptions
Throws ImagickException on error.
See Also
- Imagick::setImageMatte() - Sets the image matte channel
- Imagick Alpha Channel Constants
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https://www.php.net/manual/en/imagick.setimagealphachannel.php