Method of color interpolation in a single sensor color camera using green channel separation

Authors

Chaminda Weerasinghe, Motorola Australian Research Center
Igor Kharitonenko, University of WollongongFollow
Philip Ogunbona, University of WollongongFollow

RIS ID

65854

Publication Details

Weerasinghe, C., Kharitonenko, I. & Ogunbona, P. (2002). Method of color interpolation in a single sensor color camera using green channel separation. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (pp. IV/3233-IV/3236). IEEE.

Abstract

This paper presents a color interpolation algorithm for a single sensor color camera. The proposed algorithm is especially designed to solve the problem of pixel crosstalk among the pixels of different color channels. Interchannel cross-talk gives rise to blocking effects on the interpolated green plane, and also spreading of false colors into detailed structures. The proposed algorithm separates the green channel into two planes, one highly correlated with the red channel and the other with the blue channel. These separate planes are used for red and blue channel interpolation. Experiments conducted on McBeth color chart and natural images have shown that the proposed algorithm can eliminate or suppress blocking and color artifacts to produce better quality images.