A perceptual experiment was conducted to measure the visibility of black-level differences in the proximity of a bright glare source. In a controlled viewing environment, visual difference thresholds were adaptively measured using dark, shadow-detail images shown on a high dynamic range liquid crystal display while an external LED lamp was used to induce intra-ocular glare over a small range of...

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 ...

Current internet technology doesn't solve the following three con guration problems for corporate networks: insulating a network located in the depths of a private network from the Internet, wasting Internet address space behind a rewall, and the lack of security in communication between corporations. This paper proposes a versatile tunneling model called \DDT" in order to give solutions for th...