Patent ID: 7856140
Filing Date: 2010-12-21
Classification: H04N

Abstract:
1. A method for trapping of image data, comprising the steps of: providing the image data in an initial image per image point as color separations of colors yellow, magenta, cyan and black; generating objects with adjacent additional image points according to an object rule around image points of various of said color separations of the initial image so that extended color separation data are created; comparing the adjacent additional image points of a color separation per image point with corresponding image points of the initial image; at a coordinate of the respective adjacent image point, making a decision as to whether the additional image point is placed in the respective color separation dependent on data of the respective corresponding initial image image point; and transforming image data of the color separations yellow, magenta, and cyan into a color space of colors yellow, magenta, cyan, red, green and blue, wherein the transformation occurs according to the rules: where capital letters in said rules respectively designate a matrix of the image points of the associated color separations with corresponding initial letters of said respective colors, and K designates black.