Efficient luminance and saturation processing techniques for bypassing color coordinate transformations

Christopher C. Yang, Jeffrey J. Rodriguez

Research output: Contribution to journalConference article

26 Scopus citations

Abstract

In many applications of color image processing, only modification of the luminance component is desired. However, the commonly used coordinate systems, such as HSI, LHS, and YIQ, are not perceptually orthogonal; that is, luminance modification can cause perceptual shifts in the hue and saturation. In this paper, we present a theoretical analysis of this phenomenon. Efficient techniques are developed for bypassing the costly coordinate transformations when only the luminance or only the saturation is to be modified. Experimental results using histogram equalization support the theoretical analysis.

Original languageEnglish (US)
Pages (from-to)667-672
Number of pages6
JournalProceedings of the IEEE International Conference on Systems, Man and Cybernetics
Volume1
StatePublished - Dec 1 1995
EventProceedings of the 1995 IEEE International Conference on Systems, Man and Cybernetics. Part 2 (of 5) - Vancouver, BC, Can
Duration: Oct 22 1995Oct 25 1995

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Hardware and Architecture

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