Abstract: A method of providing full array local dimming to a display comprises performing an image processing algorithm with a processor having instructions for: determining a new pixel value for each of a plurality of pixels of the image, mapping the new pixel value to a prior pixel value for each of the plurality of pixels, scaling the image of the zone bilinearly, repeating the determining mapping and scaling until an approximation value is reached, compiling the repeated results into a data set. The method also includes dividing an image for the display having into a plurality of zones each having at least one LED associate therewith and making an illumination decision from the data set, where the illumination decision is for the at least one LED associated with one of the plurality of zones.