Author Type

Graduate Student

Date of Award

1991

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Glenn, William E.

Abstract

Recent advances in integrated circuit technology have resulted in the manufacture of analog to digital converters with a logarithmic transfer characteristic that can operate at video rates. This thesis shows that applying this sort of non-linearity to video signals during digitizing will result in a system that will more closely match the human visual system. The appropriate background is presented including image reproduction, psychophysical aspects of perception, quantization error, and contrast sensitivity. The background is then related to logarithmic processing with respect to minimizing contouring and improving the fidelity of detail in saturated colors. Finally, logarithmic processing was simulated using an image processor and prototype logarithmic analog to digital converters. The results of this demonstration are presented.

Extent

84 p.

Comments

College of Engineering and Computer Science|FAU Electronic Theses and Dissertations Collection|Thesis (M.S.E.)--Florida Atlantic University, 1991.|College of Engineering and Computer Science

Identifier

FADT14691

Format

pdf

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