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董军宇

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期刊论文

REMOVING SHADOWS FROM A SINGLE REAL-WORLD COLOR IMAGE

董军宇Kang Yao Junyu Dong*

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摘要/描述

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 illuminationinvariant direction to obtain an illumination independent grayscale image. Then color information is added back by comparing intensities in the original and illuminationinvariant 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.

版权说明:以下全部内容由董军宇上传于   2010年08月31日 10时53分45秒,版权归本人所有。

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