| 摘要 |
PCT No. PCT/DE80/00134 Sec. 371 Date May 4, 1982 Sec. 102(e) Date May 4, 1982 PCT Filed Sep. 10, 1980 PCT Pub. No. WO82/00903 PCT Pub. Date Mar. 18, 1982.The invention relates to a method for partial electronic retouch in color image reproduction. The color values of the individual color components gained by means of image point-wise, trichromatic color image scanning and digitization are deposited in a storage medium (1). The image point coordinates of the color values to be retouched in a correction area (brush surface) displaceable across the color image and the plurality of correction steps per image point are simultaneously determined with the coordinate pen (51) of a coordinate identification device (50; 51; 52) which is employed by the retoucher like a retouch brush. Image point-wise allocated correction values are calculated for the marked correction area. The color values of the color image or of a color separation are read out of the storage medium (1) and are changed by the correction values under visual control on a monitor (2) in accord with the desired retouch effect. The individual amounts by which the correction values of the correction area are changed per correction step are freely selectable. By means of prescribing change amounts which decrease from the center of the correction area towards its edge (for example, Gauss distribution), a progressive degree of retouch, i.e., a gradually increasing or decreasing degree of retouch, is achieved within the correction area.
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