lsst.scarlet.lite gee10cc3b42+772f6ae910
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Public Member Functions | Public Attributes | List of all members
lsst.scarlet.lite.parameters.FistaParameter Class Reference
Inheritance diagram for lsst.scarlet.lite.parameters.FistaParameter:
lsst.scarlet.lite.parameters.Parameter

Public Member Functions

 __init__ (self, np.ndarray x, float step, Callable|None grad=None, Callable|None prox=None, float t0=1, np.ndarray|None z0=None)
 
 update (self, int it, np.ndarray input_grad, *args)
 
- Public Member Functions inherited from lsst.scarlet.lite.parameters.Parameter
float step (self)
 
tuple[int,...] shape (self)
 
npt.DTypeLike dtype (self)
 
Parameter copy (self)
 
 resize (self, Box old_box, Box new_box)
 

Public Attributes

 t
 
- Public Attributes inherited from lsst.scarlet.lite.parameters.Parameter
 x
 
 helpers
 
 grad
 
 prox
 

Additional Inherited Members

- Protected Attributes inherited from lsst.scarlet.lite.parameters.Parameter
 _step
 

Detailed Description

A `Parameter` that updates itself using the Beck-Teboulle 2009
FISTA proximal gradient method.

See https://www.ceremade.dauphine.fr/~carlier/FISTA

Constructor & Destructor Documentation

◆ __init__()

lsst.scarlet.lite.parameters.FistaParameter.__init__ ( self,
np.ndarray x,
float step,
Callable | None grad = None,
Callable | None prox = None,
float t0 = 1,
np.ndarray | None z0 = None )

Member Function Documentation

◆ update()

lsst.scarlet.lite.parameters.FistaParameter.update ( self,
int it,
np.ndarray input_grad,
* args )
Update the parameter and meta-parameters using the PGM

See `Parameter` for the full description.

Reimplemented from lsst.scarlet.lite.parameters.Parameter.


The documentation for this class was generated from the following file: