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Added demonstration images to tutorial

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Andrew Murray 2023-09-28 08:27:56 +10:00
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docs/handbook/tutorial.rst
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@ -268,6 +268,35 @@ true, to provide for the same changes to the image's size.
A more general form of image transformations can be carried out via the A more general form of image transformations can be carried out via the
:py:meth:`~PIL.Image.Image.transform` method. :py:meth:`~PIL.Image.Image.transform` method.
Relative resizing
^^^^^^^^^^^^^^^^^
Instead of calculating the size of the new image when resizing, you can also
choose to 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")
# thumbnail() can also be used,
# but will modify the image object in place
im.thumbnail(size)
im.save("imageops_pad.png")
+------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
| | :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` |
+======+===========================================+============================================+==========================================+========================================+========================================+
|Size | (100, 100) | (100, 100) | (150, 150) | (150, 100) | (150, 100) |
+------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
|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 |
+------+-------------------------------------------+--------------------------------------------+------------------------------------------+----------------------------------------+----------------------------------------+
.. _color-transforms: .. _color-transforms:
Color transforms Color transforms