Abstract: A method for rapid color keying of color video images using individual color component Look-Up-Tables (LUTs), assigned, storing, and used for retrieving, unique sets of predetermined values, for calculating pixel transparency values of input image pixels of a color video input image, for rapidly generating output image pixels of a color video output image including selectively keyed out or transparent pixels. Pre-determined values of the individual color component LUTs are positive integer values, positive non-integer values, and zero. Particular sets of pre-determined values account for high tolerance to changes in lighting, high tolerance of color brightness, and/or, for mixing colors such as for generating smooth edges, of input image pixels of the color video input image.