Spectral contrast enhancement: Algorithms and comparisons

Abstract

This paper investigates spectral contrast enhancement techniques and their implementation complexity. Three algorithms are dealt with in this paper. The first is the method described by Baer, Moore and Gatehouse. Two alternative methods are also proposed and investigated in this paper from a practical application and implementation point of view. Theoretical analyses and results from laboratory, simulation and subject listening show that spectral contrast enhancement and performance improvement can be achieved by use of these three methods with the appropriate selection of their relevant parameters.