proximal_huber¶
-
odl.solvers.nonsmooth.proximal_operators.proximal_huber(space, gamma)[source]¶ Proximal factory of the Huber norm.
- Parameters
- space
TensorSpace The domain of the functional
- gammafloat
The smoothing parameter of the Huber norm functional.
- space
- Returns
- prox_factoryfunction
Factory for the proximal operator to be initialized.
See also
odl.solvers.default_functionals.Huberthe Huber norm functional
Notes
The proximal operator is given by given by the proximal operator of
1/(2*gamma) * L2 normin points that are<= gamma, and by the proximal operator of the l1 norm in points that are> gamma.