Inheritance diagram for lsst.scarlet.lite.component.Component:

Public Member Functions
	__init__ (self, tuple bands, Box bbox)

Box	bbox (self)

tuple	bands (self)

bool	resize (self, Box model_box)

None	update (self, int it, np.ndarray input_grad)

Image	get_model (self)

None	parameterize (self, Callable parameterization)

Protected Attributes
	_bands

	_bbox

Detailed Description

A base component in scarlet lite.

Parameters
----------
bands:
    The bands used when the component model is created.
bbox: Box
    The bounding box for this component.

Definition at line 41 of file component.py.

Constructor & Destructor Documentation

◆ init()

lsst.scarlet.lite.component.Component.__init__	(		self,
		tuple	bands,
		Box	bbox )

Reimplemented in lsst.scarlet.lite.models.parametric.ParametricComponent, lsst.scarlet.lite.models.parametric.EllipticalParametricComponent, lsst.scarlet.lite.models.free_form.FreeFormComponent, lsst.scarlet.lite.component.FactorizedComponent, and lsst.scarlet.lite.io.ComponentCube.

Definition at line 52 of file component.py.

    ):
        self._bands = bands
        self._bbox = bbox
 

Member Function Documentation

◆ bands()

tuple lsst.scarlet.lite.component.Component.bands ( self )

The bands in the component model

Definition at line 66 of file component.py.

    def bands(self) -> tuple:
        """The bands in the component model"""
        return self._bands
 

◆ bbox()

Box lsst.scarlet.lite.component.Component.bbox ( self )

The bounding box that contains the component in the full image

Definition at line 61 of file component.py.

    def bbox(self) -> Box:
        """The bounding box that contains the component in the full image"""
        return self._bbox
 

◆ get_model()

Image lsst.scarlet.lite.component.Component.get_model ( self )

Generate a model for the component

This must be implemented in inherited classes.

Returns
-------
model: Image
    The image of the component model.

Reimplemented in lsst.scarlet.lite.component.FactorizedComponent, lsst.scarlet.lite.io.ComponentCube, and lsst.scarlet.lite.models.parametric.ParametricComponent.

Definition at line 91 of file component.py.

    def get_model(self) -> Image:
        """Generate a model for the component
 
        This must be implemented in inherited classes.
 
        Returns
        -------
        model: Image
            The image of the component model.
        """
 

◆ parameterize()

None lsst.scarlet.lite.component.Component.parameterize	(		self,
		Callable	parameterization )

Convert the component parameter arrays into Parameter instances

Parameters
----------
parameterization: Callable
    A function to use to convert parameters of a given type into
    a `Parameter` in place. It should take a single argument that
    is the `Component` or `Source` that is to be parameterized.

Reimplemented in lsst.scarlet.lite.component.FactorizedComponent, lsst.scarlet.lite.io.ComponentCube, and lsst.scarlet.lite.models.parametric.ParametricComponent.

Definition at line 103 of file component.py.

    def parameterize(self, parameterization: Callable) -> None:
        """Convert the component parameter arrays into Parameter instances
 
        Parameters
        ----------
        parameterization: Callable
            A function to use to convert parameters of a given type into
            a `Parameter` in place. It should take a single argument that
            is the `Component` or `Source` that is to be parameterized.
        """
 
 

◆ resize()

bool lsst.scarlet.lite.component.Component.resize	(		self,
		Box	model_box )

Test whether or not the component needs to be resized

This should be overriden in inherited classes and return `True`
if the component needs to be resized.

Reimplemented in lsst.scarlet.lite.component.FactorizedComponent, lsst.scarlet.lite.io.ComponentCube, lsst.scarlet.lite.models.free_form.FreeFormComponent, and lsst.scarlet.lite.models.parametric.ParametricComponent.

Definition at line 71 of file component.py.

    def resize(self, model_box: Box) -> bool:
        """Test whether or not the component needs to be resized
 
        This should be overriden in inherited classes and return `True`
        if the component needs to be resized.
        """
 

◆ update()

None lsst.scarlet.lite.component.Component.update	(		self,
		int	it,
		np.ndarray	input_grad )

Update the component parameters from an input gradient

Parameters
----------
it:
    The current iteration of the optimizer.
input_grad:
    Gradient of the likelihood wrt the component model

Reimplemented in lsst.scarlet.lite.component.FactorizedComponent, lsst.scarlet.lite.io.ComponentCube, lsst.scarlet.lite.models.parametric.ParametricComponent, and lsst.scarlet.lite.models.parametric.EllipticalParametricComponent.

Definition at line 79 of file component.py.

    def update(self, it: int, input_grad: np.ndarray) -> None:
        """Update the component parameters from an input gradient
 
        Parameters
        ----------
        it:
            The current iteration of the optimizer.
        input_grad:
            Gradient of the likelihood wrt the component model
        """
 

Member Data Documentation

◆ _bands

lsst.scarlet.lite.component.Component._bands

protected

Definition at line 57 of file component.py.

◆ _bbox

lsst.scarlet.lite.component.Component._bbox