Simple Shadow Removal

Clément Fredembach, Graham D. Finlayson

Research output: Contribution to conferencePaper

45 Citations (Scopus)


Given the location of shadows, how can we obtain highquality 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.
Original languageEnglish
Number of pages4
Publication statusPublished - Aug 2006
Event18th International Conference on Pattern Recognition - Hong Kong
Duration: 20 Aug 200624 Aug 2006


Conference18th International Conference on Pattern Recognition
CityHong Kong

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