| 摘要 |
PROBLEM TO BE SOLVED: To realize expression for clearly switching a background image which does not have an alpha channel and image data which does not have the alpha channel and to make expressive power of an image to be eloquent by effectively using the alpha channel of frame data. SOLUTION: Only the alpha channel 12 of frame data which is originally used for expressing a frame, is synthesized with image data 11. At the time of synthesis, the alpha channel 12B is inverted (13B) and data is simultaneously converted. Image data to which the alpha channel is added and the background image are alpha-blended. The background image and the image of a photograph can finely be combined by using an alpha value of frame data. COPYRIGHT: (C)2004,JPO |
