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

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download__gallery_image_widget_image_widget.py>`
        to download the full example code.

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

.. _sphx_glr__gallery_image_widget_image_widget.py:


Image widget
============

Example showing the image widget in action.

Every image in an `ImageWidget` is associated with an interactive Histogram LUT tool and colorbar. Right-click the
colorbar to pick colormaps.

.. GENERATED FROM PYTHON SOURCE LINES 10-34



.. image-sg:: /_gallery/image_widget/images/sphx_glr_image_widget_001.webp
   :alt: image widget
   :srcset: /_gallery/image_widget/images/sphx_glr_image_widget_001.webp
   :class: sphx-glr-single-img


.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    /home/runner/work/fastplotlib/fastplotlib/fastplotlib/graphics/_features/_base.py:18: UserWarning: casting float64 array to float32
      warn(f"casting {array.dtype} array to float32")







|

.. code-block:: Python


    # test_example = true

    import fastplotlib as fpl
    import imageio.v3 as iio  # not a fastplotlib dependency, only used for examples

    a = iio.imread("imageio:camera.png")
    iw = fpl.ImageWidget(data=a, cmap="viridis", figure_kwargs={"size": (700, 560)})
    iw.show()

    # Access ImageGraphics managed by the image widget
    iw.figure[0, 0]["image_widget_managed"].data[:50, :50] = 0
    iw.figure[0, 0]["image_widget_managed"].cmap = "gnuplot2"

    # another way to access the image widget managed ImageGraphics
    iw.managed_graphics[0].data[450:, 450:] = 255

    figure = iw.figure

    # NOTE: `if __name__ == "__main__"` is NOT how to use fastplotlib interactively
    # please see our docs for using fastplotlib interactively in ipython and jupyter
    if __name__ == "__main__":
        print(__doc__)
        fpl.run()


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

   **Total running time of the script:** (0 minutes 1.731 seconds)


.. _sphx_glr_download__gallery_image_widget_image_widget.py:

.. only:: html

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

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

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

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

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

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: image_widget.zip <image_widget.zip>`


.. only:: html

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

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