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41 lines
1.1 KiB
ReStructuredText
41 lines
1.1 KiB
ReStructuredText
7.1.0
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-----
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API Changes
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===========
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Allow saving of zero quality JPEG images
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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If no quality was specified when saving a JPEG, Pillow internally used a value
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of zero to indicate that the default quality should be used. However, this
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removed the ability to actually save a JPEG with zero quality. This has now
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been resolved.
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.. code-block:: python
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from PIL import Image
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im = Image.open("hopper.jpg")
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im.save("out.jpg", quality=0)
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API Additions
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=============
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Reading JPEG comments
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^^^^^^^^^^^^^^^^^^^^^
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When opening a JPEG image, the comment may now be read into
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:py:attr:`~PIL.Image.Image.info`.
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Other Changes
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=============
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If present, only use alpha channel for bounding box
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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When the :py:meth:`~PIL.Image.Image.getbbox` method calculates the bounding
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box, for an RGB image it trims black pixels. Similarly, for an RGBA image it
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would trim black transparent pixels. This is now changed so that if an image
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has an alpha channel (RGBA, RGBa, PA, LA, La), any transparent pixels are
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trimmed.
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