.. py:module:: PIL.ImageOps
.. py:currentmodule:: PIL.ImageOps

:py:mod:`~PIL.ImageOps` Module
==============================

The :py:mod:`~PIL.ImageOps` module contains a number of ‘ready-made’ image
processing operations. This module is somewhat experimental, and most operators
only work on L and RGB images.

.. versionadded:: 1.1.3

.. autofunction:: autocontrast
.. autofunction:: colorize
.. autofunction:: crop
.. autofunction:: scale
.. autofunction:: deform
.. autofunction:: equalize
.. autofunction:: expand
.. autofunction:: flip
.. autofunction:: grayscale
.. autofunction:: invert
.. autofunction:: mirror
.. autofunction:: posterize
.. autofunction:: solarize
.. autofunction:: exif_transpose

Resize relative to a given size
-------------------------------

::

    from PIL import Image, ImageOps
    size = (100, 150)
    with Image.open("Tests/images/hopper.png") as im:
        ImageOps.contain(im, size).save("imageops_contain.png")
        ImageOps.cover(im, size).save("imageops_cover.png")
        ImageOps.fit(im, size).save("imageops_fit.png")
        ImageOps.pad(im, size, color="#f00").save("imageops_pad.png")

+------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
|      | :meth:`contain`                            | :meth:`cover`                            | :meth:`fit`                            | :meth:`pad`                            |
+======+============================================+==========================================+========================================+========================================+
|Size  | (100, 100)                                 | (150, 150)                               | (150, 100)                             | (150, 100)                             |
+------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
|Image | .. image:: ../example/imageops_contain.png | .. image:: ../example/imageops_cover.png | .. image:: ../example/imageops_fit.png | .. image:: ../example/imageops_pad.png |
+------+------------+-------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+

.. autofunction:: contain
.. autofunction:: cover
.. autofunction:: fit
.. autofunction:: pad