python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2024-09-21 03:18:57 +03:00
Code Issues Packages Projects Releases Wiki Activity

Add release notes for #3608 and #3861

Browse Source
This commit is contained in:
Hugo 2019-07-01 09:11:09 +03:00
parent 7585136a3d
commit 66241cacc1
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
docs/releasenotes/6.1.0.rst
View File

@ -4,6 +4,14 @@
API Additions
=============
Image.entropy
^^^^^^^^^^^^^
Calculates and returns the entropy for the image. A bilevel image (mode "1") is treated
as a greyscale ("L") image by this method. If a mask is provided, the method employs
the histogram for those parts of the image where the mask image is non-zero. The mask
image must have the same size as the image, and be either a bi-level image (mode "1") or
a greyscale image ("L").
ImageGrab.grab
^^^^^^^^^^^^^^
@ -40,6 +48,19 @@ ImageTk.getimage
This function is now supported. It returns the contents of an ``ImageTk.PhotoImage`` as
an RGBA ``Image.Image`` instance.
Improve encoding of TIFF tags
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The TIFF encoder supports more types, especially arrays. This is required for the
GeoTIFF format which encodes geospatial information.
* Pass ``tagtype`` from v2 directory to libtiff encoder, instead of autodetecting type.
* Use explicit types eg. ``uint32_t`` for ``TIFF_LONG`` to fix issues on platforms with
64-bit longs.
* Add support for multiple values (arrays). Requires type in v2 directory and values
must be passed as a tuple.
* Add support for signed types eg. ``TIFFTypes.TIFF_SIGNED_SHORT``.
Top To Bottom Complex Text Rendering
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^