mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 17:36:18 +03:00
136 lines
4.1 KiB
ReStructuredText
136 lines
4.1 KiB
ReStructuredText
9.4.0
|
|
-----
|
|
|
|
Security
|
|
========
|
|
|
|
Fix memory DOS in ImageFont
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
A corrupt or specially crafted TTF font could have font metrics that lead to
|
|
unreasonably large sizes when rendering text in font. ``ImageFont.py`` did not
|
|
check the image size before allocating memory for it. This dates to the PIL
|
|
fork. Pillow 8.2.0 added a check for large sizes, but did not consider the
|
|
case where one dimension is zero.
|
|
|
|
Null pointer dereference crash in ImageFont
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
Pillow attempted to dereference a null pointer in ``ImageFont``, leading to a
|
|
crash. An error is now raised instead. This has been present since
|
|
Pillow 8.0.0.
|
|
|
|
API Additions
|
|
=============
|
|
|
|
Added start position for getmask and getmask2
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
Text may render differently when starting at fractional coordinates, so
|
|
:py:meth:`.FreeTypeFont.getmask` and :py:meth:`.FreeTypeFont.getmask2` now
|
|
support a ``start`` argument. This tuple of horizontal and vertical offset
|
|
will be used internally by :py:meth:`.ImageDraw.text` to more accurately place
|
|
text at the ``xy`` coordinates.
|
|
|
|
Added the ``exact`` encoding option for WebP
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
The ``exact`` encoding option for WebP is now supported. The WebP encoder
|
|
removes the hidden RGB values for better compression by default in libwebp 0.5
|
|
or later. By setting this option to ``True``, the encoder will keep the hidden
|
|
RGB values.
|
|
|
|
Added ``signed`` option when saving JPEG2000
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
If the ``signed`` keyword argument is present and true when saving JPEG2000
|
|
images, then tell the encoder to save the image as signed.
|
|
|
|
Added IFD, Interop and LightSource ExifTags enums
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
:py:data:`~PIL.ExifTags.IFD` has been added, allowing enums to be used with
|
|
:py:meth:`~PIL.Image.Exif.get_ifd`::
|
|
|
|
from PIL import Image, ExifTags
|
|
im = Image.open("Tests/images/flower.jpg")
|
|
print(im.getexif().get_ifd(ExifTags.IFD.Exif))
|
|
|
|
``IFD1`` can also be used with :py:meth:`~PIL.Image.Exif.get_ifd`, but it should
|
|
not be used in other contexts, as the enum value is only internally meaningful.
|
|
|
|
:py:data:`~PIL.ExifTags.Interop` has been added for tags within the Interop IFD::
|
|
|
|
from PIL import Image, ExifTags
|
|
im = Image.open("Tests/images/flower.jpg")
|
|
interop_ifd = im.getexif().get_ifd(ExifTags.IFD.Interop)
|
|
print(interop_ifd.get(ExifTags.Interop.InteropIndex)) # R98
|
|
|
|
:py:data:`~PIL.ExifTags.LightSource` has been added for values within the LightSource
|
|
tag::
|
|
|
|
from PIL import Image, ExifTags
|
|
im = Image.open("Tests/images/iptc.jpg")
|
|
exif_ifd = im.getexif().get_ifd(ExifTags.IFD.Exif)
|
|
print(ExifTags.LightSource(exif_ifd[0x9208])) # LightSource.Unknown
|
|
|
|
getxmp()
|
|
^^^^^^^^
|
|
|
|
`XMP data <https://en.wikipedia.org/wiki/Extensible_Metadata_Platform>`_ can now be
|
|
decoded for WEBP images through ``getxmp()``.
|
|
|
|
Writing JPEG comments
|
|
^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
When saving a JPEG image, a comment can now be written from
|
|
:py:attr:`~PIL.Image.Image.info`, or by using an argument when saving::
|
|
|
|
im.save(out, comment="Test comment")
|
|
|
|
Other Changes
|
|
=============
|
|
|
|
Added support for DDS L and LA images
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
Support has been added to read and write L and LA DDS images in the uncompressed
|
|
format, known as "luminance" textures.
|
|
|
|
.. _restored-image-constants:
|
|
|
|
Constants
|
|
^^^^^^^^^
|
|
|
|
In Pillow 9.1.0, the following constants were deprecated. That has been reversed and
|
|
these constants will now remain available.
|
|
|
|
- ``Image.NONE``
|
|
- ``Image.NEAREST``
|
|
- ``Image.ORDERED``
|
|
- ``Image.RASTERIZE``
|
|
- ``Image.FLOYDSTEINBERG``
|
|
- ``Image.WEB``
|
|
- ``Image.ADAPTIVE``
|
|
- ``Image.AFFINE``
|
|
- ``Image.EXTENT``
|
|
- ``Image.PERSPECTIVE``
|
|
- ``Image.QUAD``
|
|
- ``Image.MESH``
|
|
- ``Image.FLIP_LEFT_RIGHT``
|
|
- ``Image.FLIP_TOP_BOTTOM``
|
|
- ``Image.ROTATE_90``
|
|
- ``Image.ROTATE_180``
|
|
- ``Image.ROTATE_270``
|
|
- ``Image.TRANSPOSE``
|
|
- ``Image.TRANSVERSE``
|
|
- ``Image.BOX``
|
|
- ``Image.BILINEAR``
|
|
- ``Image.HAMMING``
|
|
- ``Image.BICUBIC``
|
|
- ``Image.LANCZOS``
|
|
- ``Image.MEDIANCUT``
|
|
- ``Image.MAXCOVERAGE``
|
|
- ``Image.FASTOCTREE``
|
|
- ``Image.LIBIMAGEQUANT``
|