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Image Demosaicing

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Color Image and Video Enhancement

Abstract

The need for image demosaicing arises from the color subsampling process that occurs when color image is acquired by a single-sensor digital camera through a color filter array. Traditional interpolation strategies generate undesirable color artifacts in the demosaiced image, so as a result, many specialized algorithms have been developed to improve performance. In this chapter, we introduce the demosaicing problem and explore five representative categories of the existing demosaicing algorithms. The performance of 12 competing algorithms is compared, thanks to classic criteria. The chapter finishes with some more sophisticated approaches to the demosaicing problem that are currently being actively studied.

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Notes

  1. 1.

    The information coming from the high-frequency bands of the blue samples can also be used to facilitate the recovery of the green plane. We use red samples just for illustrating the interpolation equation Eq. (2.20a).

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Correspondence to Ruiwen Zhen .

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Zhen, R., Stevenson, R. (2015). Image Demosaicing. In: Celebi, E., Lecca, M., Smolka, B. (eds) Color Image and Video Enhancement. Springer, Cham. https://doi.org/10.1007/978-3-319-09363-5_2

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  • DOI: https://doi.org/10.1007/978-3-319-09363-5_2

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