| 摘要 |
A sharpness emphasizing method of a reproduction picture for use in a picture reproducing machine such as a color scanner or a color facsimile, wherein an original picture is scanned to pick up a picture signal which is separated into color separation picture element signals of primary colors, and wherein a reproduction picture is reproduced by using the color separation picture element signal, in which a main picture element signal whose sharpness is to be emphasized, and supplemental picture element signals positioned around the main picture element signal are picked up, in which the supplemental picture element signals picked up are weighted with factors in such a manner that the supplemental picture element signals positioned in the same distance away from the main picture element signal may be weighted with the same factor, and the supplemental picture element signals weighted are averaged to obtain a mean value signal, and in which the main picture element signal is emphasized according to the mean value signal. |
