A Survey of Demosaicing: Issues and Challenges
Vijay Kumar Banga · 2015
A demosaicing is really a digital image method used to re-establish the full color image from partial color samples result from image sensor overlaid with a color filtration array. It is known as Color Filter Array (CFA) interpolation. Today most of the digital cameras make use of a single CCD image sensor with Bayer pattern having alternate arrangement of red, blue and green colour filters , A demosaicing technique is to be applied to extract a full color image.The ensuing mosaic of color samples is refined to make high definition color image.The overall objective of this paper is to address the different demosaicing techniques to create a full resolution color image , and identify elementary variations among competitive approaches, in terms of PSRN ratios and other issues . The review of almost all the research shown that the luminance components are interpolated earliest and the chrominance components are reconstructed predicated on luminance data. This paper ends up with suitable research gaps i.e. various challenges and issues of demosaicing techniques which are required to future research Keywords—Bayer pattern, CFA, Demosaicing, Image Processing