| 摘要 |
PROBLEM TO BE SOLVED: To decrease the circuit scale of a filter arithmetic circuit. SOLUTION: Filter coefficients are held in a storage circuit 20 and a selector 21 selects filter coefficients to be inputted to multipliers J1, J2.... The multiplication results of the multipliers J1, J2... are added by adders K1, K2... to the cumulative values of multiplication results obtained so far. A process is not started after image data are temporarily held in a memory, but data of one pixel are immediately processed, which is repeated to eliminate the memory for holding the image memory and make the number of the multipliers smaller. |
