(PECL imagick 2, PECL imagick 3)
Imagick::setImageType — Sets the image type
Converts the image to the given type, which combines a color model with the presence or absence of an alpha channel. Depending on the type, this may change the colorspace, quantize the colors, or change whether the image has an alpha channel.
Imagick::setImageType() modifies the image itself. To set the type that subsequent images are written with instead, use Imagick::setType().
image_type
One of the
imagick::IMGTYPE_*
constants. imagick::IMGTYPE_UNDEFINED and
imagick::IMGTYPE_OPTIMIZE convert nothing, but are
still recorded on the image.
Returns true on success.