| 摘要 |
PROBLEM TO BE SOLVED: To realize various image effects including heat hazes and mosaics with limited hardware resources. SOLUTION: A texture storage part 142 for storing the number array of color indexes and a color pallet 144 for storing the color information sequence of an area 30 of an original image are provided. In accordance with the number array of the color indexes in the texture storage 142, the color information array in the color pallet 144 is changed and written in the area 30 of the original image with semi- transparency (or non-transparency). The color pallet can be provided in an area different from the area 30 and the area 30 itself can be formed as the color pallet. In accordance with the color information array of the area 30 and the number array of the plurality of color indexes, a plurality of color information arrays are found and written in the area 30 and in its peripheral area. The expression of heat hazes, mosaics and wavy images are thus realized. An heat haze object in which the color information array of the original image is changed is moved apart from the nozzle of a machine body with the passage of time while its position is determined in accordance with random number sequences. The random number sequences in use for the determination of the position of the heat haze object are used to determine the number array of the color indexes. |
