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

Blocks categories

• Detection
• ePSF
• Alignment & Geometry
• Centroiding
• Photometry
• Utils

All Blocks

AlignReferenceSources	Set Image sources to reference sources (from a reference Image) aligned to the Image
AlignReferenceWCS	Create WCS based on a reference containing a valid 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	alias of ComputeTransformTwirl
ComputeTransformTwirl	Compute transformation of an image to a reference image
ComputeTransformXYShift	Compute translational transform of a target image to 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.
MedianEPSF	Stack cutouts into Image.epsf: a median effective PSF
Moffat2D	Model Image.epsf as a 2D Moffat profile
Peaks	Computation of peak values for the detected stars (in ADUs).
PlateSolve	A block that performs plate solving on an astronomical image using a Gaia catalog.
PointSourceDetection	Detect point sources (as PointSource).
SEDetection	Source Extractor detection.
SegmentedPeaks	Detect point sources (backward compatibility)
SelectiveStack	Build a median stack image from the n best-FWHM images
SortSources	Sort sources given a function TODO
TESSCatalog	Query TESS (TIC) catalog
TraceDetection	Detect trace sources (as TraceSource)
TransformData	Transform image data using its transform
Trim	Image trimming
Video	A block to create a video from images data (using ffmpeg).
VideoPlot	A block to create a video from a matploltib plot (using ffmpeg).
WriteTo	Write image to FITS file