Patent Document ID: 20030123070
Application ID: 10204243
Patent Status: 0

Claim One:
1. Method for printing an HLC image (highlight color image) according to image data (BD), whereby each image datum (BU) describes a color value of a picture element of a master image (VB), and the color values of specific standard color regions are allocated to a standard color to be printed and the color values of specific HLC color regions are allocated to an HLC color to be printed, whereby the following steps are implemented for determining printing values for driving a printer for each and every picture element to be printed: a) producing half-tone printing reference patterns for the standard color and the HLC color from half-tone printing reference basic patterns(S 3 ), whereby a table having half-tone printing reference basic patterns for the standard color region and a further table with half-tone printing reference basic patterns for the HLC color region are provided, aa) a half-tone printing reference basic pattern for the standard color as well as a half-tone printing reference basic pattern for the HLC color from the table for the standard color is allocated to each color value allocated to the standard color, ab) a half-tone printing reference basic pattern for the standard color as well as a half-tone printing reference basic pattern for the HLC color from the table for the HLC color is allocated to each color value allocated to the HLC color as a respective half-tone printing reference pattern; b) selection of a half-tone printing reference pattern for the respective picture element for the standard color, whereby the half-tone printing reference pattern is selected according to the criterion of the color value of the respective picture element (S 7 ); c) selection of a half-tone printing reference pattern for the respective picture element for the HLC color, whereby the half-tone printing reference pattern is selected according to the criterion of the color value of the respective picture element (S 7 ); d) determining a printing value for the standard color and a printing value for the HLC color for the respective picture element from the corresponding half-tone printing reference pattern (S 8 ) and storing the printing values at the location of the picture elements in a print master image for the standard color and in a print master image for the HLC color; e) the print master images are transmitted (S 10 ) to a printer device for printing the standard color and for printing the HLC color.