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- Title
Performance of the Block Overlapped Histogram Equalization According to Different Window Size.
- Authors
Seng Chun Hoo; Haidi Ibrahim
- Abstract
Local enhancement methods are mostly needed to improve the contrast of relatively small objects in the image, or image with poor illumination. In this paper, we investigate the performance of one well-known local enhancement method, which is Block Overlapped Histogram Equalization (BOHE). One parameter, which is its window size, must be set in order to execute BOHE. Thus, in this paper, we examine the effect of window size towards the performance of BOHE. This evaluation is based on five image quality measures, which are the entropy value, maximum distance, speckle index value, mean structure similarity index map value, and a new image quality measure which was proposed by Song-Der Chen in 2012. It is found that a bigger window size produces more natural images as compared to the results from a smaller window size.
- Subjects
HISTOGRAMS; INDEX maps
- Publication
International Journal of Simulation -- Systems, Science & Technology, 2014, Vol 15, Issue 3, p14
- ISSN
1473-8031
- Publication type
Article
- DOI
10.5013/IJSSST.a.15.03.03