Global Contrast Factor - a New Approach to Image Contrast

Matkovic, Kresimir; Neumann, László; Neumann, Attila; Psik, Thomas; Purgathofer, Werner

Global Contrast Factor - a New Approach to Image Contrast

Files

159-167.pdf (479.03 KB)

Date

2005

Authors

Matkovic, Kresimir
Neumann, László
Neumann, Attila
Psik, Thomas
Purgathofer, Werner

Publisher

The Eurographics Association

Abstract

Contrast in image processing is usually defined as a ratio between the darkest and the brightest spots of an image. In this paper we introduce a different contrast definition. The newly introduced Global Contrast Factor (GCF) corresponds closer to the human perception of contrast. GCF uses contrasts at various resolution levels in order to compute overall contrast. Experiments were conducted in order to find weight factors needed to calculate GCF. GCF measures richness of detail as perceived by a human observer, and as such can be used in various application areas like rendering, tone mapping, volume visualization, and lighting design.

        @inproceedings{:10.2312/COMPAESTH/COMPAESTH05/159-167
,
booktitle = {Computational Aesthetics in Graphics, Visualization and Imaging
},
editor = {Laszlo Neumann and Mateu Sbert and Bruce Gooch and Werner Purgathofer
},
title = {{Global Contrast Factor - a New Approach to Image Contrast
}},
author = {Matkovic, Kresimir and 
Neumann, László and 
Neumann, Attila and 
Psik, Thomas and 
Purgathofer, Werner
},
year = {2005
},
publisher = {The Eurographics Association
},
ISSN = {1816-0859
},
ISBN = {3-905673-27-4
},
DOI = {/10.2312/COMPAESTH/COMPAESTH05/159-167
}
}