Intermediate color interpolation for color filter array containing the white channel

Jonghyun Kim; Sang Wook Park; Moon Gi Kang

doi:10.1117/12.2076485

16 March 2015 Intermediate color interpolation for color filter array containing the white channel

Jonghyun Kim, Sang Wook Park, Moon Gi Kang

Proceedings Volume 9399, Image Processing: Algorithms and Systems XIII; 93990B (2015) https://doi.org/10.1117/12.2076485
Event: SPIE/IS&T Electronic Imaging, 2015, San Francisco, California, United States

Abstract

Recently, a color filter array sensor with the white channel has been developed. This color filter array differs from the Bayer CFA, which is composed of red, green and blue channels. Since the white channel shows high sensitivity through broad spectral bands and a high light sensitivity, it presents many advantages. However, various color interpolation method for the Bayer CFA cannot be utilized for CFA pattern that contains the white channel directly. In this paper, a method for generating a quincuncial pattern is proposed for the CFA pattern. By generating an intermediate quincuncial pattern, various color interpolation algorithms can be applied to it. Experimental results are shown in comparison with the conventional method in terms of PSNR measurements.

Citation Download Citation

Jonghyun Kim, Sang Wook Park, and Moon Gi Kang "Intermediate color interpolation for color filter array containing the white channel", Proc. SPIE 9399, Image Processing: Algorithms and Systems XIII, 93990B (16 March 2015); https://doi.org/10.1117/12.2076485

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