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System and method for automatically identifying and matching a color of a structure's external surface

  • US 10,007,861 B1
  • Filed: 06/01/2016
  • Issued: 06/26/2018
  • Est. Priority Date: 02/10/2014
  • Status: Active Grant
First Claim
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1. A computer-implemented method, comprising:

  • displaying, via one or more processors, a positional overlay framing a digital image of a siding sample to be taken with an image capture device, the positional overlay including a color card reference area and a region of interest indicating a portion of the siding sample that has a first color value,wherein the positional overlay indicates instructions for (i) a distance to be maintained from the siding sample with respect to the image capture device, (ii) an orientation of the siding sample with respect to the image capture device before the digital image is captured, and (iii) a determination of a correct physical placing of a color reference card having a reference color value on the siding sample;

    capturing, via the image capture device, the digital image at the distance, orientation, and correct physical placing of the color reference card according to the instructions;

    color normalizing, via one or more processors, the digital image based upon the reference color value of the color reference card positioned within the color card reference area, the color normalizing resulting in the first color value within the region of interest being adjusted to a second color value;

    calculating, via one or more processors, a set of spatial distances representing a difference between (i) the second color value plotted as a calculated quantified color point within a color space, and (ii) each known quantified color point from among a set of known quantified color points within the color space, each known quantified color point being associated with a respective replacement siding product from among a plurality of replacement siding products; and

    determining which of the plurality of replacement siding products has a color that is a closest match to that of the siding sample by identifying, via one or more processors, which of the plurality of replacement siding products produces the shortest spatial distance from among the set of spatial distances when compared to the calculated quantified color point.

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