| 摘要 |
PURPOSE:To reduce memory capacity and to reduce cost. CONSTITUTION:This controller has an image superimposing command means 98 generating an image superimposing command when a second image effect is not under control, selection control means 94, 95, 96, 97 and 98 selectively outputting the image data of any of first to third frame memories 8a, 8b and 8c when the image superimposing command is not specified, a storage control means storing the image data to be superimposed in the third frame memory, a background data storage means 92 storing background data, and a discrimination means 93 discriminating the coincidence between the stored background data and the image data to be superimposed. When the image superimposing command is specified, the selection control means 94 to 98 selectively outputs the image data of the third frame memory 8c and the image data based on the image data of the first or second frame memory 8a or 8b corresponding to the discrimination result of the discrimination means and synthesizes them into a single image data. |
