IJRE – Volume 4 Issue 4 Paper 1

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EFFECTIVE COLOUR DEMOSAICKING WITH DIRECTIONAL FILTERING AND WEIGHTING IN DIGITAL IMAGE PIPE LINING

Author’s Name :  M Anitha Pakiyaraj | S Vaisali

Volume 04 Issue 04  Year 2017  ISSN No:  2349-252X  Page no: 1- 6

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Abstract:

Digital cameras usually use a single sensor covered with a colour filter array which samples only one colour at the location of each pixel. Restoring a full-colour image by the demosaicking technique is a key task in the digital imaging pipeline. This paper proposes a novel demosaicking approach based on the existing directional filtering and weighting techniques. The contributions of this paper are two-fold. Firstly, we analyse the advantages and limitations of the the existing directional filtering and weighting techniques, and improve the two existing techniques in order to suppress the common demosaicking artifacts. Digital cameras usually use a single sensor covered with a colour filter array which samples only one colour at the location of each pixel. Restoring a full-colour image by the demosaicking technique is a key task in the digital imaging pipeline. This paper proposes a novel demosaicking approach based on the existing directional filtering and weighting techniques. The contributions of this paper are two-fold. Firstly, we analyse the advantages and limitations of the the existing directional filtering and weighting techniques, and improve the two existing techniques in order to suppress the common demosaicking artifacts. Secondly, we give a new estimated scheme for the reconstruction of the colour components. Experimental results show that the proposed method outperforms the recent six state-of-the-art demosaicking methods in terms of both subjective and objective measures. Secondly, we give a new estimated scheme for the reconstruction of the colour components. Experimental results show that the proposed method outperforms the recent six state-of-the-art demosaicking methods in terms of both subjective and objective measures.

Key Words:

Boundary mirror, Boundary detector, Directional filtering and weighting, Colour Filter Array

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