Abstract The authors have been attempting to digitize murals at the royal tomb of Amenophis III. When photographing the murals, two strobe lights, each of which had an umbrella, were used to provide uniform illumination. Nonetheless, the illumination was still somewhat non-uniform. This non-uniform illumination was corrected by applying an illumination model, which was evaluated using images of the simulated mural with and without white patches. The illumination model was then extended to two light sources and applied to images of the actual mural. The corrected images were observed to be more uniformly illuminated.