.. note::
    :class: sphx-glr-download-link-note

    Click :ref:`here <sphx_glr_download_gallery_misc_image_thumbnail_sgskip.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_misc_image_thumbnail_sgskip.py:


===============
Image Thumbnail
===============

You can use matplotlib to generate thumbnails from existing images.
matplotlib natively supports PNG files on the input side, and other
image types transparently if your have PIL installed


.. code-block:: default


    # build thumbnails of all images in a directory
    import sys
    import os
    import glob
    import matplotlib.image as image


    if len(sys.argv) != 2:
        print('Usage: python %s IMAGEDIR' % __file__)
        raise SystemExit
    indir = sys.argv[1]
    if not os.path.isdir(indir):
        print('Could not find input directory "%s"' % indir)
        raise SystemExit

    outdir = 'thumbs'
    if not os.path.exists(outdir):
        os.makedirs(outdir)

    for fname in glob.glob(os.path.join(indir, '*.png')):
        basedir, basename = os.path.split(fname)
        outfile = os.path.join(outdir, basename)
        fig = image.thumbnail(fname, outfile, scale=0.15)
        print('saved thumbnail of %s to %s' % (fname, outfile))


.. _sphx_glr_download_gallery_misc_image_thumbnail_sgskip.py:


.. only :: html

 .. container:: sphx-glr-footer
    :class: sphx-glr-footer-example



  .. container:: sphx-glr-download

     :download:`Download Python source code: image_thumbnail_sgskip.py <image_thumbnail_sgskip.py>`



  .. container:: sphx-glr-download

     :download:`Download Jupyter notebook: image_thumbnail_sgskip.ipynb <image_thumbnail_sgskip.ipynb>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    Keywords: matplotlib code example, codex, python plot, pyplot
    `Gallery generated by Sphinx-Gallery
    <https://sphinx-gallery.readthedocs.io>`_