Adaptive histogram equalization using variable regions

Some recently introduced variations of adaptive histogram equalization (AHE) are discussed that reduce the sometimes excessive noise amplification produced by AHE in regions whose pixels show only a small range of grey values. A different approach to this problem is proposed in which each regional h...

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Bibliographic Details
Published in[1988 Proceedings] 9th International Conference on Pattern Recognition pp. 351 - 353 vol.1
Main Authors Vossepoel, A.M., Stoel, B.C., Meershoek, A.P.
Format Conference Proceeding
LanguageEnglish
Published IEEE Comput. Soc. Press 1988
Subjects
Adaptive equalizers
Biomedical imaging
Biomedical informatics
Chromium
Displays
Histograms
Image enhancement
Medical diagnostic imaging
Noise reduction
Picture archiving and communication systems
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Summary:Some recently introduced variations of adaptive histogram equalization (AHE) are discussed that reduce the sometimes excessive noise amplification produced by AHE in regions whose pixels show only a small range of grey values. A different approach to this problem is proposed in which each regional histogram that covers only a small range of grey values is replaced by a linear combination with the histograms of neighboring regions. The method is called variable-region adaptive histogram equalization.< >
ISBN:9780818608780
0818608781
DOI:10.1109/ICPR.1988.28240