High-quality linear interpolation for demosaicing of Bayer-patterned color images

Published 28 September 2004

H.S. Malvar, Li-wei He, Ross Cutler

DOI10.1109/icassp.2004.1326587

Citations432

TL;DR

A new interpolation technique for demosaicing of color images produced by single-CCD digital cameras shows that the proposed simple linear filter can lead to an improvement in PSNR and improvement in R and B interpolation when compared to a recently introduced linear interpolator.

Abstract

This paper introduces a new interpolation technique for demosaicing of color images produced by single-CCD digital cameras. We show that the proposed simple linear filter can lead to an improvement in PSNR of over 5.5 dB when compared to bilinear demosaicing, and about 0.7 dB improvement in R and B interpolation when compared to a recently introduced linear interpolator. The proposed filter also outperforms most nonlinear demosaicing algorithms, without the artifacts due to nonlinear processing, and a much reduced computational complexity.

Keywords

Computer Science

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