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Demosaicing With Directional Filtering and a posteriori Decision

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3 Author(s)
Menon, D. ; Dept. of Inf. Eng., Padova Univ. ; Andriani, S. ; Calvagno, G.

Most digital cameras use a color filter array to capture the colors of the scene. Downsampled versions of the red, green, and blue components are acquired, and an interpolation of the three colors is necessary to reconstruct a full representation of the image. This color interpolation is known as demosaicing. The most effective demosaicing techniques proposed in the literature are based on directional filtering and a posteriori decision. In this paper, we present a novel approach to this reconstruction method. A refining step is included to further improve the resulting reconstructed image. The proposed approach requires a limited computational cost and gives good performance even when compared to more demanding techniques

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Image Processing, IEEE Transactions on  (Volume:16 ,  Issue: 1 )