Curvature Filter

They behave as filters but can efficiently minimize the curvature energy.

Filters that minimize the Gaussian or mean curvature. Please cite following work
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@ARTICLE{gong:cf,
author={Yuanhao Gong and Ivo F. Sbalzarini},
journal={IEEE Transactions on Image Processing},
title={Curvature filters efficiently reduce certain variational energies},
year={2017},
volume={26},
number={4},
pages={1786-1798},
doi={10.1109/TIP.2017.2658954},
ISSN={1057-7149},
month={April},}
@phdthesis{gong:phd,
title={Spectrally regularized surfaces},
author={Gong, Yuanhao},
year={2015},
school={ETH Zurich, Nr. 22616},note={http://dx.doi.org/10.3929/ethz-a-010438292}}
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The C++ code can be found at https://github.com/YuanhaoGong/CurvatureFilter