Abstract: This paper presents a patch-sparsity-based image inpainting algorithm through a facet deduced directional derivative. The algorithm could ensure the continuity of boundaries of the inpainted ...

-- functions for computing spatial scale-space representations by spatial smoothing with the discrete analogue of the Gaussian kernel or other discrete approximations of the continuous Gaussian kernel ...

Abstract: Accurate edge direction information is required in many image processing applications. A variety of operators for computing local edge direction have been proposed, many of them estimating a ...