Please use this identifier to cite or link to this item: https://doi.org/10.1109/ICIP.2009.5414620
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dc.titleSingle image defocus map estimation using local contrast prior
dc.contributor.authorTai, Y.-W.
dc.contributor.authorBrown, M.S.
dc.date.accessioned2013-07-04T08:01:29Z
dc.date.available2013-07-04T08:01:29Z
dc.date.issued2009
dc.identifier.citationTai, Y.-W.,Brown, M.S. (2009). Single image defocus map estimation using local contrast prior. Proceedings - International Conference on Image Processing, ICIP : 1797-1800. ScholarBank@NUS Repository. <a href="https://doi.org/10.1109/ICIP.2009.5414620" target="_blank">https://doi.org/10.1109/ICIP.2009.5414620</a>
dc.identifier.isbn9781424456543
dc.identifier.issn15224880
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/40314
dc.description.abstractImage defocus estimation is useful for several applications including deblurring, blur magnification, measuring image quality, and depth of field segmentation. In this paper, we present a simple yet effective approach for estimating a defocus blur map based on the relationship of the contrast to the image gradient in a local image region. We call this relationship the local contrast prior. The advantage of our approach is that it does not require filter banks or frequency decomposition of the input image; instead we only need to compare local gradient profiles with the local contrast. We discuss the idea behind the local contrast prior and demonstrate its effectiveness on a variety of experiments. ©2009 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/ICIP.2009.5414620
dc.sourceScopus
dc.typeConference Paper
dc.contributor.departmentCOMPUTER SCIENCE
dc.description.doi10.1109/ICIP.2009.5414620
dc.description.sourcetitleProceedings - International Conference on Image Processing, ICIP
dc.description.page1797-1800
dc.identifier.isiutNOT_IN_WOS
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