Imagick::getImageAlphaChannel
PHP function
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(PECL imagick 2 >= 2.3.0, PECL imagick 3)
Checks if the image has an alpha channel
Description
Imagick::getImageAlphaChannel(): bool
Returns whether the image has an alpha channel.
Parameters Parameters
Return Values
Returns true if the image has an alpha channel value and false if not, i.e. the image is RGB rather than RGBA or CMYK rather than CMYKA.
Errors/Exceptions
Throws
Changelog
| Version | Description |
|---|---|
| PECL imagick 3.6.0 | Returns a Boolean now; previously, an Integer was returned. |