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Simple Shadow Remova

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2 Author(s)
Fredembach, C. ; Sch. of Comput. Sci., East Anglia Univ., Norwich ; Finlayson, G.

Given the location of shadows, how can we obtain high-quality shadow-free images? Several methods have been proposed so far, but they either introduce artifacts or can be difficult to implement. We propose here a simple method that results in virtually error and shadow-free images in a very short time. Our approach is based on the insight that shadow regions differ from their shadow-free counterparts by a single scaling factor. We derive a robust method to obtain that factor. We show that for complex scenes - containing many disjointed shadow regions - our new method is faster and more robust than others previously published. The method delivers good performance on a variety of outdoor images

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Pattern Recognition, 2006. ICPR 2006. 18th International Conference on  (Volume:1 )

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