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62 lines
1.6 KiB
ReStructuredText
62 lines
1.6 KiB
ReStructuredText
8.4.0
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-----
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API Changes
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===========
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Deprecations
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^^^^^^^^^^^^
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ImagePalette size parameter
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~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The ``size`` parameter will be removed in Pillow 10.0.0 (2023-01-02).
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Before Pillow 8.3.0, ``ImagePalette`` required palette data of particular lengths by
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default, and the size parameter could be used to override that. Pillow 8.3.0 removed
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the default required length, also removing the need for the size parameter.
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API Additions
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=============
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Added "transparency" argument for loading EPS images
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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This new argument switches the Ghostscript device from "ppmraw" to "pngalpha",
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generating an RGBA image with a transparent background instead of an RGB image with a
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white background.
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.. code-block:: python
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with Image.open("sample.eps") as im:
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im.load(transparency=True)
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Added WalImageFile class
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^^^^^^^^^^^^^^^^^^^^^^^^
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:py:func:`PIL.WalImageFile.open()` previously returned a generic
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:py:class:`PIL.Image.Image` instance. It now returns a dedicated
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:py:class:`PIL.WalImageFile.WalImageFile` class.
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Security
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========
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TODO
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^^^^
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TODO
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Other Changes
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=============
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Speed improvement when rotating square images
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Starting with Pillow 3.3.0, the speed of rotating images by 90 or 270 degrees was
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improved by quickly returning :py:meth:`~PIL.Image.Image.transpose` instead, if the
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rotate operation allowed for expansion and did not specify a center or post-rotate
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translation.
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Since the ``expand`` flag makes no difference for square images though, Pillow now
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uses this faster method for square images without the ``expand`` flag as well.
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