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This paper proposes a noise reduction method in digital camera images at high-International Organization for Standardization (ISO) setting. Noise characteristics of luminance and chrominance channels in high-ISO images are different, so we decompose an image into luminance and chrominance channels and process them differently. With luminance image, we perform three-dimensional (3-D) collaborative...
This paper proposes a building image retrieval algorithm using line features invariant to rotation as well as the color feature robust to illumination change. With a query image, the proposed algorithm consists of two steps: selecting candidate images among database images using the color feature and separating the nine best matching images from candidate images using the line features. In the first...
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