| 摘要 |
PROBLEM TO BE SOLVED: To arbitrarily set the degree of signal processing in anε-filter. SOLUTION: Level values a to h of peripheral picture elements of figure 1, a level value o of a target picture element, and a value of a reference levelθare inputted, and level values a to h of peripheral picture elements with absolute values of differences to the level value of the target picture element smaller than the value of the reference levelθare outputted to output ports 3. A value of the number of output ports 3 outputted with the level values a to h is outputted to an output port 4. The level value o of the target picture element is supplied to a multiplier 9 and it is multiplied with a random gain set valueα, the multiplied value is supplied to an adder 5 and it is added with the level values a to h from the output ports 3 of a selecting circuit 2, and the added value is supplied to an analog divider 7. The gain set valueαis supplied to an adder 11 and it is added with a value from the output port 4 of the selecting circuit 2, and the added value is supplied to the analog divider 7. The value from the adder 5 is divided by the value from the adder 11, and a value of its calculation result is fetched into an output port 8. |
