| 摘要 |
PROBLEM TO BE SOLVED: To reduce a required memory capacity and to reduce the burdens of an image synthesizing processing without using the CLUT of a large memory capacity for which a blending coefficientαis set per pixel in image synthesis by alpha blending. SOLUTION: In a coefficient setting means 1c, the blending coefficientαis set to a specified value when the specified component of the pixel for constituting a first image 1a is a prescribed value set in advance. In an arithmetic means 1d, the computation of alpha blending is performed with the blending coefficient a as the specified value set in the coefficient setting means 1c for all the pixel components of the pixel. |
