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

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

.. _sphx_glr_advanced_image_processing_auto_examples_plot_geom_face.py:


Geometrical transformations
==============================

This examples demos some simple geometrical transformations on a Racoon face.




.. image:: /advanced/image_processing/auto_examples/images/sphx_glr_plot_geom_face_001.png
    :class: sphx-glr-single-img





.. code-block:: python


    import numpy as np
    import scipy.misc
    from scipy import ndimage
    import matplotlib.pyplot as plt

    face = scipy.misc.face(gray=True)
    lx, ly = face.shape
    # Cropping
    crop_face = face[lx//4:-lx//4, ly//4:-ly//4]
    # up <-> down flip
    flip_ud_face = np.flipud(face)
    # rotation
    rotate_face = ndimage.rotate(face, 45)
    rotate_face_noreshape = ndimage.rotate(face, 45, reshape=False)

    plt.figure(figsize=(12.5, 2.5))


    plt.subplot(151)
    plt.imshow(face, cmap=plt.cm.gray)
    plt.axis('off')
    plt.subplot(152)
    plt.imshow(crop_face, cmap=plt.cm.gray)
    plt.axis('off')
    plt.subplot(153)
    plt.imshow(flip_ud_face, cmap=plt.cm.gray)
    plt.axis('off')
    plt.subplot(154)
    plt.imshow(rotate_face, cmap=plt.cm.gray)
    plt.axis('off')
    plt.subplot(155)
    plt.imshow(rotate_face_noreshape, cmap=plt.cm.gray)
    plt.axis('off')

    plt.subplots_adjust(wspace=0.02, hspace=0.3, top=1, bottom=0.1, left=0,
                        right=1)

    plt.show()

**Total running time of the script:** ( 0 minutes  0.460 seconds)


.. _sphx_glr_download_advanced_image_processing_auto_examples_plot_geom_face.py:


.. only :: html

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



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.readthedocs.io>`_