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- W3018342777 abstract "Image denoising and demosaicking are the most important early stages in digital camera pipelines. They constitute a severely ill-posed problem that aims at reconstructing a full color image from a noisy color filter array (CFA) image. In most of the literature, denoising and demosaicking are treated as two independent problems, without considering their interaction, or asking which should be applied first. Several recent works have started addressing them jointly in works that involve heavy weight CNNs, thus incompatible with low power portable imaging devices. Hence, the question of how to combine denoising and demosaicking to reconstruct full color images remains very relevant: Is denoising to be applied first, or should that be demosaicking first? In this paper, we review the main variants of these strategies and carry-out an extensive evaluation to find the best way to reconstruct full color images from a noisy mosaic. We conclude that demosaicking should applied first, followed by denoising. Yet we prove that this requires an adaptation of classic denoising algorithms to demosaicked noise, which we justify and specify." @default.
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- W3018342777 date "2020-04-24" @default.
- W3018342777 modified "2023-09-25" @default.
- W3018342777 title "A Review of an Old Dilemma: Demosaicking First, or Denoising First?" @default.
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- W3018342777 doi "https://doi.org/10.48550/arxiv.2004.11577" @default.
- W3018342777 hasPublicationYear "2020" @default.
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