.. _metarowcount:

metarowcount
************


**Syntax:** :code:`metarowcount(image, key, count)`

Retrieves count of rows in a metadata item.

This command cannot be used in the distributed processing mode. If you need it, please contact the authors.

Arguments
---------

image [input]
~~~~~~~~~~~~~

**Data type:** uint8 image, uint16 image, uint32 image, uint64 image, int8 image, int16 image, int32 image, int64 image, float32 image, complex32 image

Image to process.

key [input]
~~~~~~~~~~~

**Data type:** string

Name of the metadata item.

count [output]
~~~~~~~~~~~~~~

**Data type:** integer

Item count.

See also
--------

:ref:`setmeta`, :ref:`getmeta`, :ref:`writemeta`, :ref:`readmeta`, :ref:`clearmeta`, :ref:`listmeta`, :ref:`copymeta`, :ref:`metarowcount`, :ref:`metacolumncount`