Edge-adaptive color reconstruction for single-sensor digital cameras

An improved edge-adaptive color interpolation method for Bayer pattern images of single-sensor digital cameras is proposed in this paper. We derive a more accurate color edge classifier by using both ultra-channel and inter-channel correlation. In order to reduce the aliasing artifacts, missing channel values are interpolated along the edge direction. Experiment results show that the proposed method can preserve the edge information better, reduce color-bleeding artifacts and achieve higher image quality and signal fidelity against the existing schemes.