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62 lines
3.4 KiB
ReStructuredText
62 lines
3.4 KiB
ReStructuredText
.. py:module:: PIL.ImageOps
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.. py:currentmodule:: PIL.ImageOps
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:py:mod:`~PIL.ImageOps` Module
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==============================
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The :py:mod:`~PIL.ImageOps` module contains a number of ‘ready-made’ image
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processing operations. This module is somewhat experimental, and most operators
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only work on L and RGB images.
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.. versionadded:: 1.1.3
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.. autofunction:: autocontrast
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.. autofunction:: colorize
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.. autofunction:: crop
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.. autofunction:: scale
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.. autofunction:: deform
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.. autofunction:: equalize
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.. autofunction:: expand
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.. autofunction:: flip
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.. autofunction:: grayscale
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.. autofunction:: invert
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.. autofunction:: mirror
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.. autofunction:: posterize
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.. autofunction:: solarize
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.. autofunction:: exif_transpose
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.. _relative-resize:
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Resize relative to a given size
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-------------------------------
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::
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from PIL import Image, ImageOps
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size = (100, 150)
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with Image.open("Tests/images/hopper.png") as im:
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ImageOps.contain(im, size).save("imageops_contain.png")
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ImageOps.cover(im, size).save("imageops_cover.png")
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ImageOps.fit(im, size).save("imageops_fit.png")
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ImageOps.pad(im, size, color="#f00").save("imageops_pad.png")
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# thumbnail() can also be used,
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# but will modify the image object in place
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im.thumbnail(size)
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im.save("imageops_thumbnail.png")
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+----------------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
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| | :py:meth:`~PIL.Image.Image.thumbnail` | :py:meth:`~PIL.ImageOps.contain` | :py:meth:`~PIL.ImageOps.cover` | :py:meth:`~PIL.ImageOps.fit` | :py:meth:`~PIL.ImageOps.pad` |
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+================+===========================================+============================================+==========================================+========================================+========================================+
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|Given size | ``(100, 150)`` | ``(100, 150)`` | ``(100, 150)`` | ``(100, 150)`` | ``(100, 150)`` |
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+----------------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
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|Resulting image | .. image:: ../example/image_thumbnail.png | .. image:: ../example/imageops_contain.png | .. image:: ../example/imageops_cover.png | .. image:: ../example/imageops_fit.png | .. image:: ../example/imageops_pad.png |
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+----------------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
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|Resulting size | ``100×100`` | ``100×100`` | ``150×150`` | ``100×150`` | ``100×150`` |
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+----------------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
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.. autofunction:: contain
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.. autofunction:: cover
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.. autofunction:: fit
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.. autofunction:: pad
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