5.46. extract

Runs astroalign._find_sources to detect sources on the image.

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FitsArray.extract(index: int = 0, detection_sigma: float = 5.0, min_area: float = 5.0) → pd.DataFrame

Runs astroalign._find_sources to detect sources on the image.

Parameters

indexint, default=0

The index of the Fits object in the FitsArray to run extract on.

detection_sigmafloat, default=5.0

Threshold value for source detection, calculated as thresh = detection_sigma * bkg.globalrms.

min_areafloat, default=5.0

Minimum area of detected sources.

Returns

pd.DataFrame

DataFrame containing the list of sources found on the image.

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5.46.1. Example:

from myraflib import FitsArray

fa = FitsArray.sample()
sources = fa.extract()