An image rendered by a non-alpha-channel-aware application is employed in an alpha-channel-aware environment. The pixel data file to be written to by the non-alpha-channel-aware application is initialized by setting the alpha value for each pixel to 1. The alpha-channel-aware application then writes...http://www.google.fr/patents/US6954215?utm_source=gb-gplus-shareBrevet US6954215 - System and method for employing non-alpha channel image data in an alpha-channel-aware environment
System and method for employing non-alpha channel image data in an alpha ...