.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "packages/scikit-image/auto_examples/plot_boundaries.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_packages_scikit-image_auto_examples_plot_boundaries.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_packages_scikit-image_auto_examples_plot_boundaries.py:


Segmentation contours
=====================

Visualize segmentation contours on original grayscale image.

.. GENERATED FROM PYTHON SOURCE LINES 7-29



.. image-sg:: /packages/scikit-image/auto_examples/images/sphx_glr_plot_boundaries_001.png
   :alt: plot boundaries
   :srcset: /packages/scikit-image/auto_examples/images/sphx_glr_plot_boundaries_001.png
   :class: sphx-glr-single-img





.. code-block:: default


    from skimage import data, segmentation
    from skimage import filters
    import matplotlib.pyplot as plt
    import numpy as np

    coins = data.coins()
    mask = coins > filters.threshold_otsu(coins)
    clean_border = segmentation.clear_border(mask).astype(int)

    coins_edges = segmentation.mark_boundaries(coins, clean_border)

    plt.figure(figsize=(8, 3.5))
    plt.subplot(121)
    plt.imshow(clean_border, cmap='gray')
    plt.axis('off')
    plt.subplot(122)
    plt.imshow(coins_edges)
    plt.axis('off')

    plt.tight_layout()
    plt.show()


.. rst-class:: sphx-glr-timing

   **Total running time of the script:** ( 0 minutes  0.096 seconds)


.. _sphx_glr_download_packages_scikit-image_auto_examples_plot_boundaries.py:

.. only:: html

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




    .. container:: sphx-glr-download sphx-glr-download-python

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

    .. container:: sphx-glr-download sphx-glr-download-jupyter

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


.. only:: html

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

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