Nonlinear Diffusion Filtering: Some Examples

Denoising by edge-enhancing anisotropic diffusion

left image: test image with 70 % of all pixels degraded. Taken from the software package MegaWave. right image: restoration [Reference]

Gap completion by coherence-enhancing anisotropic diffusion

left image: fingerprint right image: after nonlinear diffusion filtering [Reference]

An application in computer aided quality control

left image: wood surface with a defect right image: defect visualization after nonlinear diffusion filtering [Reference]

An application in medical imaging

left: rendering of a 3-D ultrasound data set of a 10-week old human foetus right: rendering after denoising by nonlinear diffusion filtering [Reference]

An application to the design of Christmas postcards

left image: winter near Merzalben (Palatinate Forest, Germany). Photo by Dr. Martin Reißel. right image: after applying coherence-enhancing anisotropic diffusion [Reference]