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Methods and apparatus for color device characterization

  • US 7,180,629 B1
  • Filed: 04/28/2000
  • Issued: 02/20/2007
  • Est. Priority Date: 04/28/1999
  • Status: Expired due to Fees
First Claim
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1. A method of correcting color of a color image obtained by an electronic camera, comprising the steps of:

  • determining, using a neural network, a correction to data representative of the color image based upon an estimated illuminant of the color image; and

    applying the correction to the data representative of the color image, wherein the illuminant comprises multiple sources of illumination including the camera'"'"'s on-camera R/G and B/G illumination estimation data wherein R, G and B are measured signal values for illumination color;

    recording the data representative of the image with data representative of the estimated illuminant; and

    transmitting the data representative of the image with the data representative of the estimated illuminant.

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