1. A method, comprising: obtaining a radiance image comprising a plurality of separate microimages of an image of a scene; applying a calibration technique to the radiance image to generate a transformation matrix for the radiance image, wherein the calibration technique does not modify the radiance image; and performing a radiance processing technique on the radiance image to render an output image, wherein the radiance processing technique applies the transformation matrix to the radiance image to transform the plurality of separate microimages according to the transformation matrix and renders the output image from the transformed microimages.