.. _example_38:

(38) Histogram equalization of bathymetry grids
-----------------------------------------------

This example shows how to use histogram equalization to enhance various
ranges of a grid depending on its frequency distribution. The key tool
used here is :doc:`grdhisteq </grdhisteq>`.

.. literalinclude:: /_verbatim/example_38.txt
   :language: bash

.. figure:: /_images/example_38.*
   :width: 500 px
   :align: center

   Histogram equalization of bathymetry grids.