lsst.afw.image._image._multiband.MultibandMaskedImage Class Reference

Inheritance diagram for lsst.afw.image._image._multiband.MultibandMaskedImage:

Public Member Functions
	__init__ (self, filters, image=None, mask=None, variance=None)

Static Public Member Functions
	fromImages (filters, singles)
	fromArrays (filters, image, mask, variance, bbox=None)
	fromKwargs (filters, filterKwargs, singleType=MaskedImageF, **kwargs)

Protected Member Functions
	_buildSingles (self, image=None, mask=None, variance=None)

Detailed Description

MultibandMaskedImage class

This class acts as a container for multiple `afw.MaskedImage` objects.
All masked images must have the same bounding box, and the associated
images must all have the same data type.
The `image`, `mask`, and `variance` are all stored separately into
a `MultibandImage`, `MultibandMask`, and `MultibandImage` respectively,
which each have their own internal 3D arrays (filter, y, x).

See `MultibandTripleBase` for parameter definitions.

Definition at line 801 of file _multiband.py.

Constructor & Destructor Documentation

__init__()

lsst.afw.image._image._multiband.MultibandMaskedImage.__init__	(		self,
			filters,
			image = None,
			mask = None,
			variance = None )

Reimplemented from lsst.afw.image._image._multiband.MultibandTripleBase.

Definition at line 813 of file _multiband.py.

    def __init__(self, filters, image=None, mask=None, variance=None):
        super().__init__(filters, image, mask, variance)
 

Member Function Documentation

_buildSingles()

lsst.afw.image._image._multiband.MultibandMaskedImage._buildSingles ( self, image = None, mask = None, variance = None )

protected

Make a new list of single band objects

Parameters
----------
image : `MultibandImage`
   `MultibandImage` object that represent the image in each band.
mask : `MultibandMask`
   `MultibandMask` object that represent the mask in each band.
variance : `MultibandImage`
   `MultibandImage` object that represent the variance in each band.

Returns
-------
singles : `tuple`
   Tuple of `MaskedImage` objects for each band,
   where the `image`, `mask`, and `variance` of each `single`
   point to the multiband objects.

Definition at line 840 of file _multiband.py.

    def _buildSingles(self, image=None, mask=None, variance=None):
        """Make a new list of single band objects
 
        Parameters
        ----------
        image : `MultibandImage`
           `MultibandImage` object that represent the image in each band.
        mask : `MultibandMask`
           `MultibandMask` object that represent the mask in each band.
        variance : `MultibandImage`
           `MultibandImage` object that represent the variance in each band.
 
        Returns
        -------
        singles : `tuple`
           Tuple of `MaskedImage` objects for each band,
           where the `image`, `mask`, and `variance` of each `single`
           point to the multiband objects.
        """
        singles = []
        if image is None:
            image = self.image
        if mask is None:
            mask = self.mask
        if variance is None:
            variance = self.variance
 
        dtype = image.array.dtype
        singles = []
        for f in self.filters:
            _image = image[f]
            if mask is not None:
                _mask = mask[f]
            else:
                _mask = None
            if variance is not None:
                _variance = variance[f]
            else:
                _variance = None
            singles.append(MaskedImage(image=_image, mask=_mask, variance=_variance, dtype=dtype))
        return tuple(singles)

fromArrays()

lsst.afw.image._image._multiband.MultibandMaskedImage.fromArrays ( filters, image, mask, variance, bbox = None )

static

Construct a MultibandMaskedImage from a collection of arrays

see `tripleFromArrays` for a description of parameters

Definition at line 825 of file _multiband.py.

    def fromArrays(filters, image, mask, variance, bbox=None):
        """Construct a MultibandMaskedImage from a collection of arrays
 
        see `tripleFromArrays` for a description of parameters
        """
        return tripleFromArrays(MultibandMaskedImage, filters, image, mask, variance, bbox)
 

fromImages()

lsst.afw.image._image._multiband.MultibandMaskedImage.fromImages ( filters, singles )

static

Construct a MultibandImage from a collection of single band images

see `tripleFromImages` for a description of parameters

Definition at line 817 of file _multiband.py.

    def fromImages(filters, singles):
        """Construct a MultibandImage from a collection of single band images
 
        see `tripleFromImages` for a description of parameters
        """
        return tripleFromSingles(MultibandMaskedImage, filters, singles)
 

fromKwargs()

lsst.afw.image._image._multiband.MultibandMaskedImage.fromKwargs ( filters, filterKwargs, singleType = MaskedImageF, ** kwargs )

static

Build a MultibandImage from a set of keyword arguments

see `makeTripleFromKwargs` for a description of parameters

Definition at line 833 of file _multiband.py.

    def fromKwargs(filters, filterKwargs, singleType=MaskedImageF, **kwargs):
        """Build a MultibandImage from a set of keyword arguments
 
        see `makeTripleFromKwargs` for a description of parameters
        """
        return makeTripleFromKwargs(MultibandMaskedImage, filters, filterKwargs, singleType, **kwargs)
 

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-8.0.0/Linux64/afw/g5a732f18d5+be83d3ecdb/python/lsst/afw/image/_image/_multiband.py