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As mobile devices are recently equipped with advanced image sensors, it is expected that they would make it possible to diagnose one's skin condition conveniently anywhere and anytime. For this application it is necessary to classify the skin features from a skin image accurately. Although two conventional thresholding methods Otsu and Kapur perform well in a range of applications, we found that they...
In this paper, we propose a new texture descriptor GLBP (Gradient LBP) for age group estimation. LBP exploits the only signs of the gradients between a center pixel and its surrounding pixels in a local patch and it does not reflect their magnitudes. This fails LBP to describe local signal structure in detail. Motivated by this observation, we propose so called GLBP, which considers the magnitude...
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