Patent ID: 8149251
Filing Date: 2012-04-03
Classification: H04N

Abstract:
1. A method for assessment of the theoretical color accuracy of a color imaging output device having a device characterization, comprising the steps of: (a) inputting a target file and said device characterization into a color management module, wherein said target file comprises image elements each having a color aim; (b) processing said color aim for said image elements and said device characterization in said color management module to produce a device color definition for each of said color aim; (c) evaluating said device color definition for each of said color aim according to the steps of: wherein said color error is the Euclidian distance ΔE* wherein the analyzing step (ii) is conducted according to the steps of: (I) selecting one or more image elements from said target file for the purpose of calculating a quantitative assessment of color accuracy; (II) determining the number of acceptable matches by counting the number of selected image elements having a color error less than or equal to a defined color threshold; (III) further selecting neutral image elements from selected image elements, wherein said selected image elements have a value for L* greater than or equal to 25, a value for a* equal to 0, and a value for b* equal to 0; (IV) calculating a neutral error by averaging said color errors for said selected neutral image elements, and (V) combining said number of acceptable matches and said neutral error to produce said quantitative assessment of color accuracy.