Assessing visual gray-scale sensitivity on a CRT

Gerald M. Murch; Novia Weiman

doi:10.1117/12.19670

1 October 1990 Assessing visual gray-scale sensitivity on a CRT

Gerald M. Murch, Novia Weiman

Proceedings Volume 1249, Human Vision and Electronic Imaging: Models, Methods, and Applications; (1990) https://doi.org/10.1117/12.19670
Event: Electronic Imaging: Advanced Devices and Systems, 1990, Santa Clara, CA, United States

Abstract

Current imaging display systems are capable of digitizing an image to eight bits of gray scale (256 levels). For demanding imaging applications such as X-ray images or satellite images more levels of gray scale may be required to extract fine details in the complex images. Obviously the digitization process should not result in the loss of critical information. Conversely the extension of gray scale capability beyond eight bits is associated with a marked increase in system expense and development resources. The desire, then, is to provide all the visual information that the human observer is capable of detecting without over-designing the system beyond the capacity of human vision.

Citation Download Citation

Gerald M. Murch and Novia Weiman "Assessing visual gray-scale sensitivity on a CRT", Proc. SPIE 1249, Human Vision and Electronic Imaging: Models, Methods, and Applications, (1 October 1990); https://doi.org/10.1117/12.19670

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