1. A method of performing image processing on a device having one or more processing devices, the method comprising: determining, using one or more processing devices, an area containing a saturated color at a first location in an input image; identifying an opponent color of the saturated color wherein the opponent color of green is green, the opponent color of red is green, and the opponent color of blue is red; calculating an interpolant factor to apply to the first location wherein the interpolant factor is based on the opponent color; and applying the interpolant factor to the first location when combining a processed color image and a luminance image, wherein the processed color image and the luminance image have been derived from the input image.