Gradient estimation in a color filter array image and its application to demosaicing
Hye-Rin Choi, Rae‐Hong Park, Ji Won Lee · 2011
We propose a gradient estimation algorithm in a color filter array (CFA) image and apply it to demosaicing. Using directly computed ones, the proposed method estimates gradients, which cannot be computed directly from the CFA image. The proposed gradient estimation method is simple, improving the performance of existing demosaicing methods.