Patent ID: 7190489
Filing Date: 2007-03-13
Classification: H04N

Abstract:
1. A method for printing a highlight color image according to image data, each image datum describing a color value of a picture element of a master image, and color values of specific standard color regions being allocated to a standard color to be printed and color values of specific highlight color regions being allocated to a highlight color to be printed, comprising the following steps for determining printing values for driving a printer for each picture element to be printed: a) producing half-tone printing reference patterns for the standard color and the highlight color from half-tone printing reference basic patterns, and b) selecting said half-tone printing reference pattern for the respective picture element for the standard color, said selecting of said half-tone printing reference pattern being performed according to a criterion of the color value of the respective picture element; c) selecting said half-tone printing reference pattern for the respective picture element for the highlight color, said selecting of the half-tone printing reference pattern being performed according to said criterion of the color value of the respective picture element; d) determining said printing value for the standard color and said printing value for the highlight color for the respective picture element from the corresponding half-tone printing reference pattern, and e) transmitting said print master images to the printer for printing the standard color and for printing the highlight color.