1. An apparatus comprising: a repository comprising: a data structure configured to arrange data representing predicted values of luminance for a number of samples that is greater in quantity than a number of light sources; a memory comprising: an inverter module, an upsampler module, and a pixel scaler module; and a processor configured to: access the data structure to fetch the data representing the predicted values of luminance, invert the predicted values of luminance, responsive to executable instructions in the inverter module, to establish a quantity of inverted values of luminance that is substantially equivalent to the number of samples, upsample the inverted values of luminance, responsive to executable instructions in the upsampler module, to generate a quantity of upsampled inverted values of luminance that is substantially equivalent to a number of pixels, and scale pixel data by the up sampled inverted values of luminance, responsive to executable instructions in the pixel scaler module, to form a modulation signal to control a front modulator to generate an image.