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Removing Shadows from a Single Real-World Color Image

9 years 11 months ago
Removing Shadows from a Single Real-World Color Image
In this paper, we propose a new algorithm to remove shadow from a single color image. We first project log-log chromaticity coordinates onto an angle of illumination-invariant direction to obtain an illumination independent grayscale image. Then color information is added back by comparing intensities in the original and illumination-invariant grayscale images, and taking both global tonality and pixel-wise color into account. Finally, the result color image without shadow is recovered. The proposed method simplifies the color restoration procedure and therefore requires much less computation. Experimental results show that the new method can produce shadow-free images with same quality as those shown in previous work.
Kang Yao, Junyu Dong
Added 09 Mar 2010
Updated 09 Mar 2010
Type Conference
Year 2009
Where ICIP
Authors Kang Yao, Junyu Dong
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