(PECL imagick 2.0.0) Sets the image opacity level

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Rotate an image with a given angle

(PECL gmagick >= Unknown) Adds a comment to your image

(PECL cairo >= 0.1.0) The getExtend purpose

(PECL gmagick >= Unknown) The current purpose

(PECL gmagick >= Unknown) Reads image from filename

(PECL imagick 2.0.0) Composites a set of images

(PECL cairo >= 0.1.0) The getSubpixelOrder purpose

(PHP 4, PHP 5, PHP 7) Get font height int imagefontheight

(PECL imagick 2.0.0) Creates a horizontal mirror image