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Image Demosaicking Using Chromatic-Preserved Kernel Regression

In this paper, a color image demosaicking (CDM) method is proposed. For preserving the chromatic information, the original RGB plane is transformed to HSI plane, and then an anisotropic tensor matrix kernel regression based interpolation technique is processed in I-component. Finally, a directional interpolation based on R-G/B-G difference is used for R and B channel refinements. Experimental results show that our proposed demosaicking method outperforms other available methods.