Patents Examined by Luan K. Nguyen
  • Patent number: 4476487
    Abstract: 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.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: October 9, 1984
    Assignee: Dr. -Ing. Rudolf Hell GmbH
    Inventors: Jurgen Klie, Klaus Wellendorf