Demosaicing Algorithm by Gradient Edge Detection Filtering on Color Component 


Vol. 34,  No. 12, pp. 1138-1146, Dec.  2009


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  Abstract

Digital cameras adopting a single CCD detector collect image color by subsampling in three color planes and successively interpolating the information to reconstruct full-resolution color images. Therefore, to recovery of a full-resolution color image from a color filter array (CFA) like the Bayer pattern is generally considered as an interpolation issue for the unknown color components. In this paper, we first calculate luminance component value by combining R, G, B channel component information which is quite different from the conventional demosaicing algorithm. Because conventional system calculates G channel component followed by computing R and B channel components. Integrating the obtained gradient edge information and the improved weighting function in luminance component, a new edge sensitive demosaicing technique is presented. Based on 24 well known testing images, simulation results proved that our presented high-quality demosaicing technique shows the best image quality performance when compared with several recently presented techniques.

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  Cite this article

[IEEE Style]

G. Jeon, T. Jung, D. Kim, S. Kim, J. Jeong, "Demosaicing Algorithm by Gradient Edge Detection Filtering on Color Component," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 12, pp. 1138-1146, 2009. DOI: .

[ACM Style]

Gwanggil Jeon, Tae-young Jung, Donghyung Kim, Seungjong Kim, and Jechang Jeong. 2009. Demosaicing Algorithm by Gradient Edge Detection Filtering on Color Component. The Journal of Korean Institute of Communications and Information Sciences, 34, 12, (2009), 1138-1146. DOI: .

[KICS Style]

Gwanggil Jeon, Tae-young Jung, Donghyung Kim, Seungjong Kim, Jechang Jeong, "Demosaicing Algorithm by Gradient Edge Detection Filtering on Color Component," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 12, pp. 1138-1146, 12. 2009.