.. _sphx_glr_gallery_images_contours_and_fields:

.. _images_contours_and_fields_examples:

Images, contours and fields
===========================



.. raw:: html

    <div class="sphx-glr-thumbnails">


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip=" Prepending an affine transformation (`~.transforms.Affine2D`) to the data transform &lt;data-coor...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_affine_image_thumb.png
    :alt: Affine transform of an image

  :ref:`sphx_glr_gallery_images_contours_and_fields_affine_image.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Affine transform of an image</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstration of wind barb plots.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_barb_demo_thumb.png
    :alt: Wind Barbs

  :ref:`sphx_glr_gallery_images_contours_and_fields_barb_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Wind Barbs</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="The figure size is calculated so that the width in pixels is a multiple of the number of data p...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_barcode_demo_thumb.png
    :alt: Barcode

  :ref:`sphx_glr_gallery_images_contours_and_fields_barcode_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Barcode</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstration of how a colorbar can be used to interactively adjust the range of colormapping o...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_colormap_interactive_adjustment_thumb.png
    :alt: Interactive Adjustment of Colormap Range

  :ref:`sphx_glr_gallery_images_contours_and_fields_colormap_interactive_adjustment.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Interactive Adjustment of Colormap Range</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstration of using norm to map colormaps onto data in non-linear ways.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_colormap_normalizations_thumb.png
    :alt: Colormap Normalizations

  :ref:`sphx_glr_gallery_images_contours_and_fields_colormap_normalizations.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Colormap Normalizations</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstration of using norm to map colormaps onto data in non-linear ways.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_colormap_normalizations_symlognorm_thumb.png
    :alt: Colormap Normalizations SymLogNorm

  :ref:`sphx_glr_gallery_images_contours_and_fields_colormap_normalizations_symlognorm.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Colormap Normalizations SymLogNorm</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Illustrate the difference between corner_mask=False and corner_mask=True for masked contour plo...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contour_corner_mask_thumb.png
    :alt: Contour Corner Mask

  :ref:`sphx_glr_gallery_images_contours_and_fields_contour_corner_mask.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contour Corner Mask</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Illustrate simple contour plotting, contours on an image with a colorbar for the contours, and ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contour_demo_thumb.png
    :alt: Contour Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_contour_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contour Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Test combinations of contouring, filled contouring, and image plotting. For contour labelling, ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contour_image_thumb.png
    :alt: Contour Image

  :ref:`sphx_glr_gallery_images_contours_and_fields_contour_image.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contour Image</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Illustrate some of the more advanced things that one can do with contour labels.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contour_label_demo_thumb.png
    :alt: Contour Label Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_contour_label_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contour Label Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="How to use the .axes.Axes.contourf method to create filled contour plots.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contourf_demo_thumb.png
    :alt: Contourf Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_contourf_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contourf Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demo filled contour plots with hatched patterns.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contourf_hatching_thumb.png
    :alt: Contourf Hatching

  :ref:`sphx_glr_gallery_images_contours_and_fields_contourf_hatching.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contourf Hatching</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstrate use of a log color scale in contourf">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contourf_log_thumb.png
    :alt: Contourf and log color scale

  :ref:`sphx_glr_gallery_images_contours_and_fields_contourf_log.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contourf and log color scale</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Contour plotting is particularly handy when illustrating the solution space of optimization pro...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_contours_in_optimization_demo_thumb.png
    :alt: Contouring the solution space of optimizations

  :ref:`sphx_glr_gallery_images_contours_and_fields_contours_in_optimization_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contouring the solution space of optimizations</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="A ~matplotlib.image.BboxImage can be used to position an image according to a bounding box. Thi...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_demo_bboximage_thumb.png
    :alt: BboxImage Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_demo_bboximage.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">BboxImage Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This illustrates placing images directly in the figure, with no Axes objects.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_figimage_demo_thumb.png
    :alt: Figimage Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_figimage_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Figimage Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="It is often desirable to show data which depends on two independent variables as a color coded ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_annotated_heatmap_thumb.png
    :alt: Creating annotated heatmaps

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_annotated_heatmap.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Creating annotated heatmaps</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Images are represented by discrete pixels, either on the screen or in an image file.  When data...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_antialiasing_thumb.png
    :alt: Image antialiasing

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_antialiasing.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Image antialiasing</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demo of image that&#x27;s been clipped by a circular patch.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_clip_path_thumb.png
    :alt: Clipping images with patches

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_clip_path.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Clipping images with patches</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Many ways to plot images in Matplotlib.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_demo_thumb.png
    :alt: Image Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Image Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="imshow with masked array input and out-of-range colors.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_masked_thumb.png
    :alt: Image Masked

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_masked.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Image Masked</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This illustrates the NonUniformImage class.  It is not available via an Axes method but it is e...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_nonuniform_thumb.png
    :alt: Image Nonuniform

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_nonuniform.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Image Nonuniform</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Blend transparency with color to highlight parts of data with imshow.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_transparency_blend_thumb.png
    :alt: Blend transparency with color in 2D images

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_transparency_blend.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Blend transparency with color in 2D images</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Modify the coordinate formatter to report the image &quot;z&quot; value of the nearest pixel given x and ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_image_zcoord_thumb.png
    :alt: Modifying the coordinate formatter

  :ref:`sphx_glr_gallery_images_contours_and_fields_image_zcoord.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Modifying the coordinate formatter</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This example displays the difference between interpolation methods for ~.axes.Axes.imshow.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_interpolation_methods_thumb.png
    :alt: Interpolations for imshow

  :ref:`sphx_glr_gallery_images_contours_and_fields_interpolation_methods.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Interpolations for imshow</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Comparison of a contour plot of irregularly spaced data interpolated on a regular grid versus a...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_irregulardatagrid_thumb.png
    :alt: Contour plot of irregularly spaced data

  :ref:`sphx_glr_gallery_images_contours_and_fields_irregulardatagrid.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Contour plot of irregularly spaced data</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Layer images above one another using alpha blending">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_layer_images_thumb.png
    :alt: Layer Images

  :ref:`sphx_glr_gallery_images_contours_and_fields_layer_images.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Layer Images</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="~.axes.Axes.matshow visualizes a 2D matrix or array as color-coded image.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_matshow_thumb.png
    :alt: Matshow

  :ref:`sphx_glr_gallery_images_contours_and_fields_matshow.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Matshow</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Make a set of images with a single colormap, norm, and colorbar.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_multi_image_thumb.png
    :alt: Multi Image

  :ref:`sphx_glr_gallery_images_contours_and_fields_multi_image.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Multi Image</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Generating images with ~.axes.Axes.pcolor.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_pcolor_demo_thumb.png
    :alt: Pcolor Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_pcolor_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Pcolor Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip=".axes.Axes.pcolormesh and ~.axes.Axes.pcolor have a few options for how grids are laid out and ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_pcolormesh_grids_thumb.png
    :alt: pcolormesh grids and shading

  :ref:`sphx_glr_gallery_images_contours_and_fields_pcolormesh_grids.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">pcolormesh grids and shading</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip=".axes.Axes.pcolormesh allows you to generate 2D image-style plots.  Note it is faster than the ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_pcolormesh_levels_thumb.png
    :alt: pcolormesh

  :ref:`sphx_glr_gallery_images_contours_and_fields_pcolormesh_levels.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">pcolormesh</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="A stream plot, or streamline plot, is used to display 2D vector fields. This example shows a fe...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_plot_streamplot_thumb.png
    :alt: Streamplot

  :ref:`sphx_glr_gallery_images_contours_and_fields_plot_streamplot.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Streamplot</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="~.axes.Axes.pcolormesh uses a ~matplotlib.collections.QuadMesh, a faster generalization of ~.ax...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_quadmesh_demo_thumb.png
    :alt: QuadMesh Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_quadmesh_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">QuadMesh Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstrates some more advanced options for ~.axes.Axes.quiver.  For a simple example refer to ...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_quiver_demo_thumb.png
    :alt: Advanced quiver and quiverkey functions

  :ref:`sphx_glr_gallery_images_contours_and_fields_quiver_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Advanced quiver and quiverkey functions</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="A simple example of a ~.axes.Axes.quiver plot with a ~.axes.Axes.quiverkey.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_quiver_simple_demo_thumb.png
    :alt: Quiver Simple Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_quiver_simple_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Quiver Simple Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Example showing how to make shaded relief plots like Mathematica_ or `Generic Mapping Tools`_.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_shading_example_thumb.png
    :alt: Shading example

  :ref:`sphx_glr_gallery_images_contours_and_fields_shading_example.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Shading example</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demo of a spectrogram plot (`~.axes.Axes.specgram`).">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_specgram_demo_thumb.png
    :alt: Spectrogram Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_specgram_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Spectrogram Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Plot the sparsity pattern of arrays.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_spy_demos_thumb.png
    :alt: Spy Demos

  :ref:`sphx_glr_gallery_images_contours_and_fields_spy_demos.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Spy Demos</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Contour plots of unstructured triangular grids.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_tricontour_demo_thumb.png
    :alt: Tricontour Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_tricontour_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Tricontour Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstrates high-resolution tricontouring of a random set of points; a matplotlib.tri.TriAnaly...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_tricontour_smooth_delaunay_thumb.png
    :alt: Tricontour Smooth Delaunay

  :ref:`sphx_glr_gallery_images_contours_and_fields_tricontour_smooth_delaunay.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Tricontour Smooth Delaunay</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstrates high-resolution tricontouring on user-defined triangular grids with matplotlib.tri...">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_tricontour_smooth_user_thumb.png
    :alt: Tricontour Smooth User

  :ref:`sphx_glr_gallery_images_contours_and_fields_tricontour_smooth_user.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Tricontour Smooth User</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Demonstrates computation of gradient with matplotlib.tri.CubicTriInterpolator.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_trigradient_demo_thumb.png
    :alt: Trigradient Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_trigradient_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Trigradient Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Interpolation from triangular grid to quad grid.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_triinterp_demo_thumb.png
    :alt: Triinterp Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_triinterp_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Triinterp Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Pseudocolor plots of unstructured triangular grids.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_tripcolor_demo_thumb.png
    :alt: Tripcolor Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_tripcolor_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Tripcolor Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Creating and plotting unstructured triangular grids.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_triplot_demo_thumb.png
    :alt: Triplot Demo

  :ref:`sphx_glr_gallery_images_contours_and_fields_triplot_demo.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Triplot Demo</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="Using a PNG file as a watermark.">

.. only:: html

  .. image:: /gallery/images_contours_and_fields/images/thumb/sphx_glr_watermark_image_thumb.png
    :alt: Watermark image

  :ref:`sphx_glr_gallery_images_contours_and_fields_watermark_image.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Watermark image</div>
    </div>


.. raw:: html

    </div>


.. toctree::
   :hidden:

   /gallery/images_contours_and_fields/affine_image
   /gallery/images_contours_and_fields/barb_demo
   /gallery/images_contours_and_fields/barcode_demo
   /gallery/images_contours_and_fields/colormap_interactive_adjustment
   /gallery/images_contours_and_fields/colormap_normalizations
   /gallery/images_contours_and_fields/colormap_normalizations_symlognorm
   /gallery/images_contours_and_fields/contour_corner_mask
   /gallery/images_contours_and_fields/contour_demo
   /gallery/images_contours_and_fields/contour_image
   /gallery/images_contours_and_fields/contour_label_demo
   /gallery/images_contours_and_fields/contourf_demo
   /gallery/images_contours_and_fields/contourf_hatching
   /gallery/images_contours_and_fields/contourf_log
   /gallery/images_contours_and_fields/contours_in_optimization_demo
   /gallery/images_contours_and_fields/demo_bboximage
   /gallery/images_contours_and_fields/figimage_demo
   /gallery/images_contours_and_fields/image_annotated_heatmap
   /gallery/images_contours_and_fields/image_antialiasing
   /gallery/images_contours_and_fields/image_clip_path
   /gallery/images_contours_and_fields/image_demo
   /gallery/images_contours_and_fields/image_masked
   /gallery/images_contours_and_fields/image_nonuniform
   /gallery/images_contours_and_fields/image_transparency_blend
   /gallery/images_contours_and_fields/image_zcoord
   /gallery/images_contours_and_fields/interpolation_methods
   /gallery/images_contours_and_fields/irregulardatagrid
   /gallery/images_contours_and_fields/layer_images
   /gallery/images_contours_and_fields/matshow
   /gallery/images_contours_and_fields/multi_image
   /gallery/images_contours_and_fields/pcolor_demo
   /gallery/images_contours_and_fields/pcolormesh_grids
   /gallery/images_contours_and_fields/pcolormesh_levels
   /gallery/images_contours_and_fields/plot_streamplot
   /gallery/images_contours_and_fields/quadmesh_demo
   /gallery/images_contours_and_fields/quiver_demo
   /gallery/images_contours_and_fields/quiver_simple_demo
   /gallery/images_contours_and_fields/shading_example
   /gallery/images_contours_and_fields/specgram_demo
   /gallery/images_contours_and_fields/spy_demos
   /gallery/images_contours_and_fields/tricontour_demo
   /gallery/images_contours_and_fields/tricontour_smooth_delaunay
   /gallery/images_contours_and_fields/tricontour_smooth_user
   /gallery/images_contours_and_fields/trigradient_demo
   /gallery/images_contours_and_fields/triinterp_demo
   /gallery/images_contours_and_fields/tripcolor_demo
   /gallery/images_contours_and_fields/triplot_demo
   /gallery/images_contours_and_fields/watermark_image