| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital filter circuit, with which desired filtering processing can be applied to a plurality of kinds of images while maintaining a circuit configuration for basically applying filtering processing to one kind of one piece of image data. SOLUTION: A multiplication part 11 is provided with storage areas 113a-113d storing filter coefficients corresponding to four kinds of image data Ga-Gd respectively, a multiplexer 114 for guiding the filter coefficient to a coefficient buffer 115 by selectively connecting the storage area parts 113a-113d, a delay circuit 111 composed of four buffers 111a-111d for successively moving pixel data to the side of post-stage in the order of the image data Ga-Gd, and a multiplier 112 for multiplying the filter coefficient read out of the coefficient buffer 115 and the pixel data read out of the buffer 111a. |
