Demosaicing of color filter array captured images using gradient edge detection masks and adaptive heterogeneity-projection.

Chung, Kuo-Liang; Yang, Wei-Jen; Yan, Wen-Ming; Wang, Chung-Chou · IEEE Trans Image Process · 2008

other · Level V

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Abstract

Without demosaicing processing, this paper first proposes a new approach to extract more accurate gradient/edge information on mosaic images directly. Next, based on spectral-spatial correlation, a novel adaptive heterogeneity-projection with proper mask size for each pixel is presented. Combining the extracted gradient/edge information and the adaptive heterogeneity-projection values, a new edge-sensing demosaicing algorithm is presented. Based on 24 popular testing images, experimental results demonstrated that our proposed high-quality demosaicing algorithm has the best image quality performance when compared with several recently published algorithms.

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