| 摘要 |
Method and apparatus for eliminating image defects in polychromatic printing which arise due to lack of registration in the superimposed printing of individual color separations with different colored inks wherein from the four color separation signals M, C, Y and K the color separation signal which defines the contour is determined in the area of the contour. This color separation signal which corresponds to the color of the selected signal is replaced in the lighter or, respectively, darker area by the selected color separation signal and the color separation signals of the darker or, respectively, lighter areas which are adjacent to the lighter or, respectively, darker areas are retained unaltered so that the white streaks and imperfections of the prior art are eliminated.
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