Patent ID: 9076068
Filing Date: 2015-07-07
Classification: G01J,G06K,H04N

Abstract:
1. A method for performing a color comparison between a first swatch comprising a first set of pixels and a second swatch comprising a second set of pixels, the method comprising: computing a first set of weighted mean RGB values for the first swatch; computing a second set of weighted mean RGB values for the second swatch; and calculating a color difference between the first swatch and the second swatch, based on the first set of weighted mean RGB values and the second set of weighted mean RGB values, wherein the calculating disregards at least one of: (1) a color that is present in the second swatch, but outside a threshold distance from any color in the first swatch or (2) a spatial distribution of colors in the first swatch and a spatial distribution of colors in the second swatch.