Adaptive residual interpolation for color image demosaicking

Color image demosaicking is an essential image processing operation for acquiring high-quality color images. Recently, demosaicking algorithms using residual interpolation (RI), which performs the interpolation in a residual domain, have been proposed. An iterative framework has also been introduced into the RI and shown state-of-the-art performance. In this paper, we propose a novel demosaicking algorithm using adaptive residual interpolation (ARI), which adaptively selects a suitable iteration number and combines two different types of RI algorithms at each pixel. Experimental results demonstrate that our demosaicking algorithm can achieve a clear improvement in comparison with existing algorithms.