:orphan:

.. _NPZ:

NPZ Numpy's compressed array format
===================================

Extensions: ``.npz``

NPZ is a file format by numpy that provides storage of array
data using gzip compression. This imageio plugin supports data of any
shape, and also supports multiple images per file.

However, the npz format does not provide streaming; all data is
read/written at once. Further, there is no support for meta data.

Beware that the numpy npz format has a bug on a certain combination
of Python 2.7 and numpy, which can cause the resulting files to
become unreadable on Python 3. Also, this format is not available
on Pypy.

Parameters for reading
----------------------
None

Parameters for saving
---------------------
None


