Composite includes two tools for the purpose of premultiplication functions: the Premultiply tool and the Unpremultiply tool. The Premultiply tool premultiples an input image (see Premultiply Tool). The Unpremultiply tool unpremultiplies an input image (see Unpremultiply Tool).
Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License