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Document alternatives to accessing individual pixels

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Andrew Murray 2022-03-01 14:13:40 +11:00
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10
docs/reference/PixelAccess.rst
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@ -6,7 +6,13 @@
The PixelAccess class provides read and write access to
:py:class:`PIL.Image` data at a pixel level.
.. note:: Accessing individual pixels is fairly slow. If you are looping over all of the pixels in an image, there is likely a faster way using other parts of the Pillow API.
.. note:: Accessing individual pixels is fairly slow. If you are
looping over all of the pixels in an image, there is likely
a faster way using other parts of the Pillow API.
:mod:`~PIL.Image`, :mod:`~PIL.ImageChops` and :mod:`~PIL.ImageOps`
have methods for many standard operations. If you wish to perform
a custom mapping, check out :py:meth:`~PIL.Image.Image.point`.
Example
-------
@ -39,7 +45,7 @@ Access using negative indexes is also possible.
:py:class:`PixelAccess` Class
-----------------------------------
-----------------------------
.. class:: PixelAccess

8
docs/reference/PyAccess.rst
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@ -7,8 +7,12 @@
The :py:mod:`~PIL.PyAccess` module provides a CFFI/Python implementation of the :ref:`PixelAccess`. This implementation is far faster on PyPy than the PixelAccess version.
.. note:: Accessing individual pixels is fairly slow. If you are
looping over all of the pixels in an image, there is likely
a faster way using other parts of the Pillow API.
looping over all of the pixels in an image, there is likely
a faster way using other parts of the Pillow API.
:mod:`~PIL.Image`, :mod:`~PIL.ImageChops` and :mod:`~PIL.ImageOps`
have methods for many standard operations. If you wish to perform
a custom mapping, check out :py:meth:`~PIL.Image.Image.point`.
Example
-------