1. A method of compensating for spatially repeated patterns of structural non-uniformities in an array of solid state devices in a display panel, said method comprising generating at least one image based on the spatially repeated patterns of the structural non-uniformities of the display panel, each of the at least one images matching one or more of the spatially repeated patterns, displaying the at least one image in the panel, extracting the outputs of the spatially repeated patterns across the panel, for each area of the structural non-uniformities, using image sensors in spatial association with the spatially repeated patterns of the structural non-uniformities, quantifying the non-uniformities based on the values of the extracted outputs, and modifying input signals to the display panel to compensate for the non-uniformities.