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

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

.. _sphx_glr_packages_scikit-image_auto_examples_plot_equalize_hist.py:


Equalizing the histogram of an image
=====================================

Histogram equalizing makes images have a uniform histogram.




.. image:: /packages/scikit-image/auto_examples/images/sphx_glr_plot_equalize_hist_001.png
    :class: sphx-glr-single-img





.. code-block:: python


    from skimage import data, exposure
    import matplotlib.pyplot as plt

    camera = data.camera()
    camera_equalized = exposure.equalize_hist(camera)

    plt.figure(figsize=(7, 3))

    plt.subplot(121)
    plt.imshow(camera, cmap='gray', interpolation='nearest')
    plt.axis('off')
    plt.subplot(122)
    plt.imshow(camera_equalized, cmap='gray', interpolation='nearest')
    plt.axis('off')
    plt.tight_layout()
    plt.show()

**Total running time of the script:** ( 0 minutes  0.074 seconds)


.. _sphx_glr_download_packages_scikit-image_auto_examples_plot_equalize_hist.py:


.. only :: html

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



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

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