| 摘要 |
PURPOSE:To reduce noise by adjusting the positions of plural and similar patterns, and adding them when they exist in a picture. CONSTITUTION:Mostly similar patterns are parts corresponding to the tilt part edges of segments 17 in a scanning waveform 18. Consequently, carsors 20 are put out on the picture 19, and the parts corresponding to the tilt part edges are designated by sandwiching them by the carsors 20, whereby respective dislocations are calculated in plural scanning waveforms. Thus, the waveforms are added so that the corresponding patterns are overlapped in consideration of the positions of the waveforms whose discoloration become distinct. Thus, noise can be reduced without taking plural screens. |
