Abstract: The present invention is directed to predicting and optimizing the exposure value of cameras in order to properly capture images, achieve robust and efficient calibration, and detect faults. The present invention features a method comprising displaying one or more reference images and using the camera to capture the reference image at one or more camera exposures. This allows an optimal camera exposure and an optimal reference image to be determined. The method may further comprise estimating ambient light. The method may further comprise the display device displaying an input image and identifying relative properties of the input image in comparison to the reference image. The method may further comprise predicting an optimal exposure based on the relative properties of the input image, ambient light, and the optimal reference exposure, adjusting the exposure value of the camera based on the optimal exposure, and capturing the input image at the proper exposure.