The new Colour-Science anisotropic Edge Preserving Noise Reduction can be used to remove any type of image noise or jpeg artefacts.

Normal noise filters are isotropic which means that they have a filtering pattern, which is equal in horizontal and vertical direction. For instance, bilinear and trilinear filtering are both isotropic filtering techniques, since their filtering pattern is square. Anisotropic filtering occurs when the filtering pattern exhibits different values along different axes. Anisotropic filtering uses a non-square, or anisotropic filtering pattern, hence the name.

Since the Colour-Science anisotropic Noise Reduction filter finds contours in any direction, it is also very efficient for anti-aliasing image contours which are degraded by high jpeg compression. The algorithm will so remove jpeg artefacts very efficiently.