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Volume: 2 | Article ID: art00023
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Efficient, Chromaticity-Preserving Midtone Correction for RGB Images
James M. Kasson
  DOI :  10.2352/CIC.1994.2.1.art00023  Published Online :  January 1994
Abstract

RGB Gamma adjustment, the standard method for control of midtone values, causes large changes in chromaticity. This paper presents an image transform algorithm that allows control of midtone values while producing chromatically-correct results. The exact algorithm requires computations only moderately more complex than those required for gamma adjustment. Approximations to the algorithm are simpler to implement than gamma adjustment, yet produce results which are more chromatically correct.

Journal Title : Color and Imaging Conference
Publisher Name : Society of Imaging Science and Technology
Publisher Location : 7003 Kilworth Lane, Springfield, VA 22151, USA
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 DOI 10.2352/CIC.1994.2.1.art00023
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James M. Kasson, "Efficient, Chromaticity-Preserving Midtone Correction for RGB Images"  in Proc. IS&T 2nd Color and Imaging Conf.,  1994,  pp 78 - 84,  https://doi.org/10.2352/CIC.1994.2.1.art00023

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Copyright © Society for Imaging Science and Technology 1994
72010350
Color and Imaging Conference
color imaging conf
2166-9635
Society of Imaging Science and Technology
7003 Kilworth Lane, Springfield, VA 22151, USA
2166-9635(19940101)1994:1L.78;1-
cic_v1994n1/splitsection23.xml
/ist/cic/1994/00001994/00000001/art00023
Articles
Efficient, Chromaticity-Preserving Midtone Correction for RGB Images
KassonJames M.
01011994
1994
1
78
84
1994
RGB Gamma adjustment, the standard method for control of midtone values, causes large changes in chromaticity. This paper presents an image transform algorithm that allows control of midtone values while producing chromatically-correct results. The exact algorithm requires computations only moderately more complex than those required for gamma adjustment. Approximations to the algorithm are simpler to implement than gamma adjustment, yet produce results which are more chromatically correct.