Special Session 144: 

Cahn-Hilliard inpainting with non-smooth potentials

Kei Fong Lam
The Chinese University of Hong Kong
Hong Kong
Co-Author(s):    Harald Garcke and Vanessa Styles
Abstract:
Inpainting is the action of restoring missing or damaged details in images, and it is desirable to produce a result, which to the naked eye, does not distinguish where the inpainting has been performed. Out of the many existing approaches and algorithms proposed in the literature, we focus on the approach of Bertozzi, Esedoglu and Gillette that modifies the Cahn-Hilliard equation with a data fidelity term. This method seems to be simpler to implement and obtain good reconstruction much faster. We alter the potential term from a smooth quartic one to a non-smooth double-obstacle one and discuss the existence of weak solutions to both the time-dependent and stationary problems.