Determination of the standard color values of colors represented on a color monitor
AssigneeDr. Ing. Rudolf Hell GmbH
InventorEggert Jung
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Abstract
The invention relates to a method of determining the standard color data of colors represented on a color monitor. Within a color represented on the color monitor there is fixed a measurement area in which the color measurement data are determined. From the color measurement data there are calculated the corresponding standard color data of the color selected by the measurement area, taking into account the tube characteristics and the standard color data of the individual phosphors of the color monitor. The accuracy of the determination of standard color data can be increased by multiple measurement within the measurement area. The calculated standard color data are, for example, the starting quantities for a color mixture calculation by means of a color formula computer.
Claims9
A method of generating standard tristimulus values, of colors recorded line-by-line on a screen of a color monitor by video color signals representing the brightness on said screen, the screen having individual phosphors, the method comprising the steps of:
- (a) determining the standard tristimulus values of the individual phosphors of the screen;
- (b) determining the functional relation between brightness and video color signals for said color monitor;
- (c) defining a measurement area within a recorded color on said screen;
- (d) determining the tristimulus values of the color selected by said measurement area in at least one measuring point within said area by sampling the corresponding video color signals values;
- and
- (e) converting the tristimulus values of the selected color into the corresponding standard tristimulus values taking into account the functional brightness relation and the standard tristimulus values of the individual phosphors.
Dependencies are inferred from the claim text.