Method and system for chroma key masking

Details Method and system for chroma key masking Method and system for chroma key masking

2005-10-25

2008-11-11

Alavi, Amir (Department: 2624)

Image analysis

Color image processing

Reexamination Certificate

active

07450750

ABSTRACT:
A method for chroma key masking is provided. The method includes adjusting a first parameter representing a size of a first ellipsoid in a color space, adjusting a second parameter representing a size of a second ellipsoid in the color space, and generating a mask value for a given pixel color based on the location of the given pixel color in the color space, relative to the first and second ellipsoids. The first ellipsoid is centered about a prescribed chroma key color and the second ellipsoid is also centered about the prescribed chroma key color. The second ellipsoid surrounds the first ellipsoid in the color space.

REFERENCES:
patent: 6300955 (2001-10-01), Zamir
patent: 6859236 (2005-02-01), Yui
patent: 2006/0045332 (2006-03-01), Park

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