Color correction against changes of light source in image acquisition by CCD camera

摘要

Color cameras usually have a device called white balance that allows one to capture a white reference without predominant colors. In this work we analyze the compensating mechanism of white balance in a color CCD camera to evaluate if the compensation permits to establish resemblances with the process of color constancy that takes place in the human visual system. We use common lightings and a camera with dichroic mirrors and three CCD sensors to capture a color image with color quality.