1. An apparatus comprising: an array of display elements; control logic configured to: receive an input image frame, wherein the input image frame includes, for each of a plurality of pixels, a first set of color parameter values; generate an output image frame by: obtaining a gamut mapping saturation parameter; for each pixel in the received image frame, using the gamut mapping saturation parameter, applying a content adaptive gamut mapping process to the first set of color parameter values associated with the pixel to map the first set of color parameter values to a second set of color parameter values; decomposing the second set of color parameter values associated with the plurality of pixels to form pixel intensity values in respective color subfields associated with at least four different colors; and generating display element state information for the display elements based on the color subfields; output the output image frame to the array of display elements; determine a color difference between the output image frame and a reference output image frame; and update the gamut mapping saturation parameter based on the determined color difference.