.. only:: html

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

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

    .. _sphx_glr_auto_examples_a_new_hope.py:


Using custom colors
===================

Using the recolor method and custom coloring functions.



.. rst-class:: sphx-glr-horizontal


    *

      .. image:: /auto_examples/images/sphx_glr_a_new_hope_001.png
          :alt: Custom colors
          :class: sphx-glr-multi-img

    *

      .. image:: /auto_examples/images/sphx_glr_a_new_hope_002.png
          :alt: Default colors
          :class: sphx-glr-multi-img






.. code-block:: default


    import numpy as np
    from PIL import Image
    from os import path
    import matplotlib.pyplot as plt
    import os
    import random

    from wordcloud import WordCloud, STOPWORDS


    def grey_color_func(word, font_size, position, orientation, random_state=None,
                        **kwargs):
        return "hsl(0, 0%%, %d%%)" % random.randint(60, 100)


    # get data directory (using getcwd() is needed to support running example in generated IPython notebook)
    d = path.dirname(__file__) if "__file__" in locals() else os.getcwd()

    # read the mask image taken from
    # http://www.stencilry.org/stencils/movies/star%20wars/storm-trooper.gif
    mask = np.array(Image.open(path.join(d, "stormtrooper_mask.png")))

    # movie script of "a new hope"
    # http://www.imsdb.com/scripts/Star-Wars-A-New-Hope.html
    # May the lawyers deem this fair use.
    text = open(path.join(d, 'a_new_hope.txt')).read()

    # pre-processing the text a little bit
    text = text.replace("HAN", "Han")
    text = text.replace("LUKE'S", "Luke")

    # adding movie script specific stopwords
    stopwords = set(STOPWORDS)
    stopwords.add("int")
    stopwords.add("ext")

    wc = WordCloud(max_words=1000, mask=mask, stopwords=stopwords, margin=10,
                   random_state=1).generate(text)
    # store default colored image
    default_colors = wc.to_array()
    plt.title("Custom colors")
    plt.imshow(wc.recolor(color_func=grey_color_func, random_state=3),
               interpolation="bilinear")
    wc.to_file("a_new_hope.png")
    plt.axis("off")
    plt.figure()
    plt.title("Default colors")
    plt.imshow(default_colors, interpolation="bilinear")
    plt.axis("off")
    plt.show()


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

   **Total running time of the script:** ( 0 minutes  7.839 seconds)


.. _sphx_glr_download_auto_examples_a_new_hope.py:


.. only :: html

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



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

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



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

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


.. only:: html

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

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