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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Linan Jiao Zhaoyun Sun Aimin Sha |
| Copyright Year | 2010 |
| Abstract | Most existing global contrast enhancement algorithm can not deal with high dynamic range images which are often under non-uniform illumination. Thus a simplified logarithmic transformation equation has been proposed in this paper to meet this demand. Furthermore a partially overlapped sub-block method is also adopted to perform local contrast enhancement. For purpose of optimization, two contrast measures are used for finding optimal transformation parameters. They merge into a new algorithm, called POSLT (Partially Overlapped Sub-block Logarithmic transformation). POSLT exhibits good performance and Controllability even if it has high computational complexity. Our experimental results show its local adaptation for contrast enhancement, the results give firmly support to POSLT. |
| Starting Page | 51 |
| Ending Page | 54 |
| File Size | 2116344 |
| Page Count | 4 |
| File Format | |
| ISBN | 9780769540085 |
| e-ISBN | 9781424466023 |
| DOI | 10.1109/MMIT.2010.22 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-04-24 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Histograms Image processing Lighting Dynamic range Educational institutions Controllability Information technology Sun Computational complexity Equations |
| Content Type | Text |
| Resource Type | Article |
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