Hybrid model of diffusion based on the Jeffreys-type equation for noise reduction on images.

Hybrid methods filtering of images generally put in collaboration two filters: the first is used for the pre-smoothing and the second to finalise the filtering operation. This approach permits to smoothen the image efficiently while preserving at best its contours and fine structures. Unfortunately, the pre-smoothing generally induces a blur which is not taken into account during the smoothing. In...