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» On the Removal of Shadows from Images
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JGTOOLS
2006
107views more  JGTOOLS 2006»
13 years 7 months ago
Efficient Shadows for Sampled Environment Maps
This paper addresses the problem of efficiently calculating shadows from environment maps in the context of ray-tracing. Since accurate rendering of shadows from environment maps ...
Aner Ben-Artzi, Ravi Ramamoorthi, Maneesh Agrawala
ICASSP
2011
IEEE
12 years 11 months ago
Enhancement of uneven lighting text image using line-based Empirical Mode Decomposition
Non-uniform light distribution problems often arise in the text images taken by digital camera. In this paper, we propose a novel technique for text image uneven lighting removal ...
Soo-Chang Pei, Mary Tzeng, Yu-Zhe Hsiao
ICIP
2003
IEEE
14 years 9 months ago
Removal of video line jitter using a dynamic programming approach
Analog video digitized from noisy sources can suffer of line registration problems due to bad synchronization pulses. The effect is that the image lines are randomly shiftedwith r...
Louis Laborelli
SI3D
1992
ACM
13 years 11 months ago
Lights from Highlights and Shadows
Designing the illumination of a scene is a di cult task because one needs to render the whole scene in order to look at the result. Obtaining the correct lighting e ects may requi...
Pierre Poulin, Alain Fournier
ICASSP
2011
IEEE
12 years 11 months ago
Single-frame-based rain removal via image decomposition
Rain removal from a video is a challenging problem and has been recently investigated extensively. Nevertheless, the problem of rain removal from a single image has been rarely st...
Yu-Hsiang Fu, Li-Wei Kang, Chia-Wen Lin, Chiou-Tin...