| 摘要 |
PROBLEM TO BE SOLVED: To reduce an influence of error upon filter operation. SOLUTION: A main CPU calculates a filter coefficient again in accordance with an adjustment value when the degree of sharpness is adjusted, and the main CPU obtains a maximum number of bits from the calculated filter coefficient value and sets the filter coefficient obtained by shifting bits in accordance with a register size (bit width), to a filter coefficient register to perform filtering processing. COPYRIGHT: (C)2004,JPO |
