Beyond Color Difference: Residual Interpolation for Color Image Demosaicking

  title={Beyond Color Difference: Residual Interpolation for Color Image Demosaicking},
  author={Daisuke Kiku and Yusuke Monno and Masayuki Tanaka and Masatoshi Okutomi},
  journal={IEEE Transactions on Image Processing},
In this paper, we propose residual interpolation (RI) as an alternative to color difference interpolation, which is a widely accepted technique for color image demosaicking. Our proposed RI performs the interpolation in a residual domain, where the residuals are differences between observed and tentatively estimated pixel values. Our hypothesis for the RI is that if image interpolation is performed in a domain with a smaller Laplacian energy, its accuracy is improved. Based on the hypothesis… CONTINUE READING
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