Selective De-noising of Sparse-Coloured Images
Arjun Chaudhuri

TL;DR
This paper introduces a pixel-specific de-noising algorithm tailored for sparse-coloured images affected by Additive White Gaussian Noise, with applications in astronomy and communication channels.
Contribution
It presents a novel de-noising approach specifically designed for sparse-coloured images impacted by AWGN, addressing a gap in existing noise reduction techniques.
Findings
Effective noise reduction in astronomical images.
Improved clarity of images with sparse colours.
Potential applications in satellite and mobile communications.
Abstract
Since time immemorial, noise has been a constant source of disturbance to the various entities known to mankind. Noise models of different kinds have been developed to study noise in more detailed fashion over the years. Image processing, particularly, has extensively implemented several algorithms to reduce noise in photographs and pictorial documents to alleviate the effect of noise. Images with sparse colours-lesser number of distinct colours in them-are common nowadays, especially in astronomy and astrophysics where black and white colours form the main components. Additive noise of Gaussian type is the most common form of noise to be studied and analysed in majority of communication channels, namely-satellite links, mobile base station to local cellular tower communication channel,et. al. Most of the time, we encounter images from astronomical sources being distorted with noise…
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