StitchedPsf

class lsst.cell_coadds.StitchedPsf(images: GridContainer[ImageD], grid: UniformGrid)

Bases: ImagePsf

A piecewise PSF implementation backed by a 2-d grid of images.

Attributes Summary

COPY
INTERNAL
grid	The grid on which the images are placed.
images	The images that make up this PSF.

Methods Summary

clone()	Return a deep copy of this object.
computeApertureFlux(self, radius, position, ...)
computeBBox(self, position, color)
computeImage(self, position, color, owner)
computeImageBBox(self, position, color)
computeKernelBBox(self, position, color)
computeKernelImage(self, position, color, owner)
computePeak(self, position, color)
computeShape(self, position, color)
getAverageColor(self)
getAveragePosition()	Get a position where PSF can be evaluated on a patch.
getCacheCapacity(self)
getLocalKernel(self, position, color)
isPersistable(self)
readFits(name)	Persist the PSF as a FITS file.
recenterKernelImage(im, position, ...)
resized(self, width, height)
setCacheCapacity(self, arg0)
writeFits(name)	Persist the PSF as a FITS file.

Attributes Documentation

COPY = <ImageOwnerEnum.COPY: 0>

INTERNAL = <ImageOwnerEnum.INTERNAL: 1>

grid

The grid on which the images are placed.

images

The images that make up this PSF.

Methods Documentation

clone() → StitchedPsf

Return a deep copy of this object.

computeApertureFlux(self: lsst.afw.detection.Psf, radius: typing.SupportsFloat, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78477499ad70>) → float

computeBBox(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78479cd70530>) → lsst.geom.Box2I

computeImage(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x784774999230>, owner: lsst.afw.detection.Psf.ImageOwnerEnum = <ImageOwnerEnum.???: 0>) → lsst::afw::image::Image<double>

computeImageBBox(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78476d85a0f0>) → lsst.geom.Box2I

computeKernelBBox(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x784774fccc70>) → lsst.geom.Box2I

computeKernelImage(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78477499a030>, owner: lsst.afw.detection.Psf.ImageOwnerEnum = <ImageOwnerEnum.???: 0>) → lsst::afw::image::Image<double>

computePeak(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78476d8587f0>) → float

computeShape(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78477499b3b0>) → lsst.afw.geom.ellipses.Quadrupole

getAverageColor(self: lsst.afw.detection.Psf) → lsst.afw.image._imageLib.Color

getAveragePosition() → Point2D

Get a position where PSF can be evaluated on a patch.

This defaults to the center of the patch bounding box, unless there are no inputs there. In that case, it switches to find an arbitrary cell, typically at a corner that has inputs and returns the center position of the cell.

getCacheCapacity(self: lsst.afw.detection.Psf) → int

getLocalKernel(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x78477502dbf0>) → lsst::afw::math::Kernel

static isPersistable(self: lsst.afw.table.io.Persistable) → bool

readFits(name: str) → None

Persist the PSF as a FITS file.

static recenterKernelImage(im: lsst::afw::image::Image<double>, position: lsst.geom.Point2D, warpAlgorithm: str = 'lanczos5', warpBuffer: typing.SupportsInt = 5) → lsst::afw::image::Image<double>

resized(self: lsst.afw.detection.Psf, width: SupportsInt, height: SupportsInt) → lsst.afw.detection.Psf

setCacheCapacity(self: lsst.afw.detection.Psf, arg0: SupportsInt) → None

writeFits(name: str) → None

Persist the PSF as a FITS file.