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Information Technologies and Control

The Journal of Institute of Information and Communication Technologies of Bulgarian Academy of Sciences

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UDP – a New Universal Demosaicing Pipeline Algorithm for RGB Color Filter Arrays

G. Zapryanov
Published Online: 2014-12-30 | DOI: https://doi.org/10.2478/itc-2013-0012


A new universal demosaicing method suitable for imaging pipelines using a RGB color filter array (CFA) is proposed. The proposed algorithm can reconstruct single-sensor images registered by a digital camera equipped with any RGB CFA currently in use. The algorithm includes a spatio-spectral interpolation model, a new edge-detection technique, and a post processing to reduce the color shifts and artifacts of the reconstructed image. Experimental results over various test CFA patterns and real images demonstrate the efficiency and feasibility of a universal demosaicing algorithm proposed in the paper. Two methods - objective metrics (mean squared error - MSE and peak signal to noise ratio - PSNR), and subjective evaluation are used to analyze the results

Keywords: Color filter array; pseudo-random CFAs; universal demosaicing algorithms


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About the article

Received: 2014-07-14

Published Online: 2014-12-30

Published in Print: 2014-09-01

Citation Information: Information Technologies and Control, Volume 11, Issue 3, Pages 16–29, ISSN (Online) 1312-2622, DOI: https://doi.org/10.2478/itc-2013-0012.

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© 2015. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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