.. lsst-task-topic:: lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask

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NumberDeblendChildSourcesMetricTask
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``NumberDeblendChildSourcesMetricTask`` computes the number of science sources created by deblending when processing data through single-frame processing (as the ``pipe_tasks.numDeblendChildSciSources`` metric).
It requires source catalogs (by default, a ``src`` dataset) as input, and operates at image-level granularity.

.. _lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask-summary:

Processing summary
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``NumberDeblendChildSourcesMetricTask`` reads source catalogs (``src`` datasets, by default) and adds up the number of sources that have a deblending parent in those catalogs.
Sky sources, and sources that are themselves deblended, are not counted.

.. _lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask-api:

Python API summary
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.. lsst-task-api-summary:: lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask

.. _lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask-butler:

Butler datasets
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Input datasets
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``sources``
    The catalog type for science sources (default: ``src``).

.. _lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask-subtasks:

Retargetable subtasks
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.. lsst-task-config-subtasks:: lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask

.. _lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask-configs:

Configuration fields
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.. lsst-task-config-fields:: lsst.pipe.tasks.metrics.NumberDeblendChildSourcesMetricTask