| 摘要 |
A picture processing apparatus and method adapted to realize simplified exertion of special effects on any picture to apply a mosaic or the like thereto. The apparatus comprises a means for encoding the picture to generate encoded data, and a means for controlling the encoding means to exert special effects on the picture. A quantizer normally quantizes only a direct-current component of entire DCT coefficients per block of 8x8 pixels, while setting each of the other DCT coefficients to zero. In this case, the picture is given merely a single color per macro block of 16x16 pixels, so that the picture appears with a mosaic applied thereto. And in a recording medium, a program is recorded for enabling a computer to execute a special effect process according to the method of the invention. Thus, mosaic fade or the like can be performed simply by mere manipulation of the parameters of encoded data without the necessity of decoding even the pixel data of the raster image of such encoded data.
|
