Methods, systems, and apparatus include computer programs encoded on a computer-readable storage medium, including a method for processing images. A structure provides a light sources configured to illuminate a target area. Illumination is controlled in a sequence over a first time period. At a given point in time, light sources are powered to enable illumination of the target area. An image of a target object is captured from a single reference location. The captured image is evaluated including processing the evaluated images on a pixel by pixel basis to produce a single composite image having respective pixel values derived from the evaluated captured images. The target object is 3D scanned to determine height information for a surface of a target on the target area. The height information is used to flatten respective pixels of the composite image. The composite image is provided after the flattening of the respective pixels.