The
            Premultiply tool lets you take an input image and create an image
            where each pixel color's component is multiplied by the pixel's
            alpha component. The multiplication result is clamped to the color
            range of the output image.
         
         To premultiply an image using the Premultiply
            tool:
         
         
            - Drag the Premultiply tool from the Formatting
               folder into the dependency graph in the Schematic view.
               The image is premultiplied.
                NoteWhen using the Premultiply
                     tool, make sure the output image is never processed by a tool that
                     produces incorrect results while operating on an image with premultiplied
                     data. Tracking of whether images are stored in premultiplied format
                     or not, does not occur.