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Color extraction of a video stream

  • US 10,339,410 B1
  • Filed: 01/13/2016
  • Issued: 07/02/2019
  • Est. Priority Date: 01/13/2016
  • Status: Active Grant
First Claim
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1. A computer implemented method, comprising:

  • receiving, by one or more processors, a set of images of a video stream, the set of images depicting at least a portion of a face within the video stream;

    converting, by the one or more processors, a first portion of images of the set of images to a set of cylindrical coordinate representations as the set of images is being captured;

    performing a first histogram equalization on the set of cylindrical coordinate representations;

    detecting an area of interest for the first portion of images of the set of images, the area of interest positioned on the portion of the face within the video stream;

    identifying one or more colors of the set of cylindrical coordinate representations based on the area of interest, the one or more colors identified within the portion of the face;

    determining a prevailing color of the one or more colors within the area of interest;

    comparing pixel values within the area of interest to a set of predetermined pixel value ranges selected from a plurality of sets of pixel value ranges each associated with an object type;

    converting the prevailing color from the cylindrical coordinate representation to a color space associated with the set of images of the video stream while the set of images are being captured;

    applying the prevailing color to a second portion of images of the set of images of the video stream while the set of images are being captured; and

    generating a modified set of images by performing a second histogram equalization on the set of cylindrical coordinate representations of the second portion of images after applying the prevailing color.

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