Method of selective color control of digital video images

DC
  • US 6,122,012 A
  • Filed: 03/03/1999
  • Issued: 09/19/2000
  • Est. Priority Date: 03/03/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of selectively controlling an individual color of a digital video input image, the steps of the method being performed by a data processor, the method comprising the steps of:

  • (a) receiving the digital video input image, featuring pixels;

    (b) characterizing the digital video input image and its target output image;

    (c) selecting an individual color of the digital video input image to be controlled;

    (d) defining a set of individual color look-up-tables according to an individual color;

    (e) defining a set of individual color control functions according to an individual color for calculating values in said set of individual color look-up-tables;

    (f) assigning values to color control parameters in said set of individual color control functions;

    (g) inserting initial values into said set of individual color look-up-tables;

    (h) determining new values in said set of individual color look-up-tables;

    (i) determining values of pixels in said target output image from said new values in said set of individual color look-up-tables; and

    (j) displaying said target output image on a video display device, said target output image includes a change in an individual color of the digital video input image, whereby all other colors of the digital video input image remain unchanged.

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