Title :
Adaptive histogram equalization using variable regions
Author :
Vossepoel, Albert M. ; Stoel, Berend C. ; Meershoek, A. Peter
Author_Institution :
Med. Sch., Leiden Univ., Netherlands
Abstract :
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
Keywords :
pattern recognition; picture processing; adaptive histogram equalization; grey values; noise amplification; pattern recognition; picture processing; regional histogram; Adaptive equalizers; Biomedical imaging; Biomedical informatics; Chromium; Displays; Histograms; Image enhancement; Medical diagnostic imaging; Noise reduction; Picture archiving and communication systems;
Conference_Titel :
Pattern Recognition, 1988., 9th International Conference on
Conference_Location :
Rome
Print_ISBN :
0-8186-0878-1
DOI :
10.1109/ICPR.1988.28240
