| Abstract: | Abstract— High‐dynamic‐range (HDR) images are superior to conventional images. The experiments in this paper measure camera and human responses to calibrated HDR test targets. We calibrated a 4.3‐log‐unit test target, with minimal and maximal glare from a changeable surround. Glare is an uncontrolled spread of an image‐dependent fraction of scene luminance in cameras and in the eye. We use this standard test target to measure the range of luminances that can be captured on a camera's image plane. Further, we measure the appearance of these test luminance patches. We discuss why HDR is better than conventional imaging, despite the fact the reproduction of luminance is inaccurate. |
