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: float, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x7e63288b9270>) → float¶

computeBBox(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x7e63288bbb30>) → 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 0x7e63292485f0>, 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 0x7e63295f96f0>) → 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 0x7e632984a2b0>) → 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 0x7e63288ba1b0>, 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 0x7e63288baef0>) → float¶

computeShape(self: lsst.afw.detection.Psf, position: lsst.geom.Point2D, color: lsst.afw.image._imageLib.Color = <lsst.afw.image._imageLib.Color object at 0x7e63288bbe70>) → 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 0x7e63288bb3b0>) → 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: int = 5) → lsst::afw::image::Image<double>¶

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

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

writeFits(name: str) → None¶: Persist the PSF as a FITS file.

Navigation

StitchedPsf¶