.. _example_cluster_plot_lena_ward_segmentation.py:


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A demo of structured Ward hierarchical clustering on Lena image
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Compute the segmentation of a 2D image with Ward hierarchical
clustering. The clustering is spatially constrained in order
for each segmented region to be in one piece.



.. image:: images/plot_lena_ward_segmentation_1.png
    :align: center


**Script output**::

  Compute structured hierarchical clustering...
  Elaspsed time:  16.5310111046
  Number of pixels:  65536
  Number of clusters:  15



**Python source code:** :download:`plot_lena_ward_segmentation.py <plot_lena_ward_segmentation.py>`

.. literalinclude:: plot_lena_ward_segmentation.py
    :lines: 10-