Demosaicing: image reconstruction from color CCD samples
نویسندگان
چکیده
منابع مشابه
Demosaicing: Image Reconstruction from Color CCD Samples
A simplified color image formation model is used to construct an algorithm for image reconstruction from CCD sensors samples. The proposed method involves two successive steps. The first is motivated by Cok's template matching technique, while the second step uses steerable inverse diffusion in color. Classical linear signal processing techniques tend to oversmooth the image and result in notic...
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This is a color gure] 2. The Red and Green components of a 1D image. 3. The Red and Green components painted as surfaces in x; y; I with the inverse diiusion (across the edge) and diiusion (along the edge) directions. Original image (before sampling) Reconstruction (bilinear interpolation) Reconstruction (weighted interpolation) Enhancement Original image (before sampling) Reconstruction (bilin...
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A simpliied color image formation model is used to construct an algorithm for image reconstruction from CCD sensors samples. The proposed method involves two successive steps. The rst is motivated by Cok's 1] template matching technique, while the second step uses steerable inverse diiusion in color. Classical linear signal processing techniques tend to over smooth the image and result in notic...
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A method of demosaicing and zooming for color filter array (CFA) via residual image reconstruction is presented. Given the demosaicing and zooming methods, a residual image between the ‘genuine’ image and an initial demosaiced and zoomed image is reconstructed using a dictionary and sparse coding. The ‘genuine’ image has richer edges and details than that of the initially obtained image. A gene...
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Most demosaicing algorithms today are based on first reconstructing the green (G) color component followed by the reconstruction of the red (R) and the blue (B) components based on the green. This approach and the associated methods of using the differences R−G and B−G are arbitrary and in most cases not optimal. Instead, we propose optimal color transforms for demosaicing. This optimization is...
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ژورنال
عنوان ژورنال: IEEE Transactions on Image Processing
سال: 1999
ISSN: 1057-7149
DOI: 10.1109/83.784434