Blocks

A Block is a single unit of processing acting on the Image object, reading and writing its attributes. Blocks documentation include the following information:

• read: the Image attributes read by the Block

• write: the Image attributes written by the Block

• modify data: indicates that the Image.data is modified by the Block

Detection

AutoSourceDetection	Detect all sources
PointSourceDetection	Detect point sources (as PointSource)
DAOFindStars	DAOPHOT stars detection with photutils implementation.
SEDetection	Source Extractor detection.
TraceDetection	Detect trace sources (as TraceSource)

PSF

MedianEPSF

Stack cutouts into Image.epsf: a median effective PSF

Once an effective PSF is constructed (an Image in Image.epsf) it can be modeled with the following blocks:

Gaussian2D	Model Image.epsf as a 2D Gaussian profile
Moffat2D	Model Image.epsf as a 2D Moffat profile
JAXGaussian2D	Model Image.epsf as a 2D Gaussian profile (powered by JAX)
JAXMoffat2D	Model Image.epsf as a 2D Moffat profile (powered by JAX)

Alignment & Geometry

Trim	Image trimming
Cutouts	Create cutouts around all sources
Align	Align image data to a reference
AlignReferenceSources	Set Image sources to reference Image sources, properly aligned
AlignReferenceWCS	Create WCS based on reference WCS.

Centroiding

CentroidCOM	Centroiding using photutils.centroids.centroid_com
CentroidQuadratic	Centroiding using photutils.centroids.centroid_quadratic
CentroidGaussian2D	Centroiding using photutils.centroids.centroid_2dg
CentroidBallet	Centroiding with ballet.

Photometry

AperturePhotometry	Perform aperture photometry of each sources
AnnulusBackground	Estimate background around each source using an annulus aperture

Utils

Get	Retrieve and store properties from an Image.
Calibration	Flat, Bias and Dark calibration.
SortSources	Sort sources given a function TODO
CleanBadPixels

All

Align	Align image data to a reference
AlignReferenceSources	Set Image sources to reference Image sources, properly aligned
AlignReferenceWCS	Create WCS based on reference WCS.
AlignSources
AnnulusBackground	Estimate background around each source using an annulus aperture
AperturePhotometry	Perform aperture photometry of each sources
Apply	Apply a function to an image.
AutoSourceDetection	Detect all sources
Calibration	Flat, Bias and Dark calibration.
CentroidBallet	Centroiding with ballet.
CentroidCOM	Centroiding using photutils.centroids.centroid_com
CentroidGaussian2D	Centroiding using photutils.centroids.centroid_2dg
CentroidQuadratic	Centroiding using photutils.centroids.centroid_quadratic
CleanBadPixels
ComputeTransform	Compute transformation fromm a reference image
Cutouts	Create cutouts around all sources
DAOFindStars	DAOPHOT stars detection with photutils implementation.
Del	Remove a property from an Image
Drizzle	Produce a dithered image.
GaiaCatalog	Query gaia catalog
Gaussian2D	Model Image.epsf as a 2D Gaussian profile
Get	Retrieve and store properties from an Image.
GetFluxes	A conveniant class to get fluxes and background from aperture and annulus blocks
HFD
JAXGaussian2D	Model Image.epsf as a 2D Gaussian profile (powered by JAX)
JAXMoffat2D	Model Image.epsf as a 2D Moffat profile (powered by JAX)
LimitSources	Limit number of sources.
LivePlot
MedianEPSF	Stack cutouts into Image.epsf: a median effective PSF
Moffat2D	Model Image.epsf as a 2D Moffat profile
Peaks
PlateSolve	Plate solve an image using twirl
PointSourceDetection	Detect point sources (as PointSource)
RawVideo
SEDetection	Source Extractor detection.
SegmentedPeaks	Detect point sources (backward compatibility)
SelectiveStack	Build a median stack image from the n best-FWHM images
SetAffineTransform
SortSources	Sort sources given a function TODO
TESSCatalog	Query TESS (TIC) catalog
TraceDetection	Detect trace sources (as TraceSource)
Trim	Image trimming
VideoPlot	Make a video out of a plotting function
WriteTo	Write image to FITS file