Diffusion filtering example - JPEG restoration

Pavel Mrazek
Center for Machine Perception
Czech Technical University
http://cmp.felk.cvut.cz/


The following image shows a JPEG image as downloaded from the web. In the table below, you can see that a more detailed view reveals severe JPEG and discretization artefacts. At the price of a slight softening of the image, the artefacts can be eliminated using an anisotropic diffusion filter.



Details of the JPEG image Supersampled and filtered with anisotropic NL diffusion

Further information

Pavel Mrazek, mrazekp@cmp.felk.cvut.cz Last modified: Aug 23, 2001.