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288 Commits

Author SHA1 Message Date
Hugo
afa758eb33 Re-add deprecated PILLOW_VERSION to give projects more time to upgrade 2020-03-29 18:36:37 +03:00
Andrew Murray
ff6ca4159a Prevent masking Image reduce method 2020-03-29 16:27:29 +11:00
orlnub123
84c33abaa0 Make key an argument 2020-02-22 12:30:10 +00:00
orlnub123
8f21d0ddf0 Improve rounding 2020-02-21 23:38:38 +00:00
orlnub123
2e716de63d Floor the size 2020-02-16 21:26:17 +11:00
orlnub123
e226e4ed64 Don't upscale if the image is smaller than the size 2020-02-16 21:25:51 +11:00
orlnub123
e9ef1d236d Fix size calculation of Image.thumbnail() 2020-02-16 21:25:51 +11:00
Alexander
54f3dc6006 Math functions return int in Python 3 2020-02-08 00:34:53 +03:00
Hugo van Kemenade
892aec306b
Merge pull request #4385 from jdufresne/try-block 
Limit try block to code expected to raise an exception
 2020-01-26 20:04:39 +02:00
Jon Dufresne
bd71374cd2 Limit try block to code expected to raise an exception 
In the off chance that the additional code in decoder()/encoder() raise
a KeyError or AttributeError, a bug could be hidden.
 2020-01-26 07:10:22 -08:00
Jon Dufresne
63729766c4 Remove unnecessary coerce to float 
In Python 3, the division operator is floating point division. No longer
need to coerce integers to floating point numbers before division.
 2020-01-26 06:33:18 -08:00
Andrew Murray
6a7ac38c6c extents are not used by map_buffer 2020-01-26 13:22:23 +11:00
Alexander
34029e9af4 texts fixes 2019-12-30 03:23:30 +03:00
Alexander
1bd9b16e97 wording 2019-12-27 15:35:17 +03:00
Alexander
222c2f6978 Merge branch 'master' into reduce-in-resize 2019-12-27 15:13:19 +03:00
Alexander Karpinsky
5f69035865
Merge pull request #4251 from uploadcare/reduce 
Reduce operation
 2019-12-27 15:11:47 +03:00
Alexander
fc0248869c wording 2019-12-27 14:27:37 +03:00
Andrew Murray
e446b58317 Lint fix 2019-12-26 20:21:16 +11:00
Andrew Murray
996f552f32
Highlight class name 
Co-Authored-By: Hugo van Kemenade <hugovk@users.noreply.github.com>
 2019-12-26 19:55:10 +11:00
Andrew Murray
c99257abb4
Updated error string 
Co-Authored-By: Hugo van Kemenade <hugovk@users.noreply.github.com>
 2019-12-26 19:54:28 +11:00
Andrew Murray
fedb0407b4 Raise ValueError for io.StringIO in Image.open 2019-12-26 18:53:06 +11:00
Andrew Murray
ca0209d194 Updated exception documentation [ci skip] 2019-12-26 13:16:49 +11:00
Alexander
d719aafecb Merge branch 'reduce' into reduce-in-resize 
# Conflicts:
#	docs/releasenotes/7.0.0.rst
 2019-12-25 15:45:17 +03:00
Alexander
dda5558129 Merge branch 'master' into reduce 2019-12-25 15:42:47 +03:00
Andrew Murray
c35fb6fb67
Merge branch 'master' into box-in-thumbnail 2019-12-24 18:18:34 +11:00
Andrew Murray
74a8034644 Updated draft documentation [ci skip] 2019-12-24 14:50:53 +11:00
Hugo
113477fbee Fix unexpected unindents 2019-12-21 14:05:50 +02:00
Alexander
59f8eeb290 add release notes 2019-12-21 03:16:42 +03:00
Alexander
8181aed77f Merge branch 'reduce' into reduce-in-resize 
# Conflicts:
#	docs/releasenotes/7.0.0.rst
#	src/PIL/Image.py
 2019-12-20 20:27:11 +03:00
Alexander
d41f2713b6 Merge branch 'master' into reduce 2019-12-20 20:22:36 +03:00
Alexander
b48996c213 rename max_reduce to reducing_gap 2019-12-20 14:59:18 +03:00
Alexander
b85c610a03 Use box for reduce 2019-12-20 14:54:06 +03:00
Alexander
b112e55070 Merge branch 'master' into box-in-thumbnail 
# Conflicts:
#	docs/releasenotes/7.0.0.rst
 2019-12-19 16:36:37 +03:00
Alexander Karpinsky
6d75a673b6
Merge pull request #4255 from uploadcare/default-resample-filter 
Change default resize resampling filter from NEAREST to BICUBIC
 2019-12-19 16:33:34 +03:00
Alexander
cdd1253211 notes fixes 
skip-checks: true
 2019-12-18 01:09:54 +03:00
Alexander
fa9e85cd1f max_reduce arguments in resize and thumbnail 2019-12-17 03:01:51 +03:00
Alexander
2db5406626 Merge branch 'box-in-thumbnail' into reduce-in-resize-2 2019-12-17 02:27:44 +03:00
Alexander
ea9c6e9fe1 Merge branch 'master' into reduce 2019-12-17 02:26:05 +03:00
Alexander
a027897f74 Merge branch 'master' into box-in-thumbnail 
# Conflicts:
#	Tests/test_image_thumbnail.py
 2019-12-17 00:42:29 +03:00
Andrew Murray
c7bef264bc Allow thumbnail to accept non-integer size arguments 2019-12-17 06:05:36 +11:00
Alexander
791d1a2846 Better thumbnail aspect ratio preservation 2019-12-07 20:07:27 +03:00
Alexander
ac92836e81 Change default resize resampling filter 2019-12-07 18:08:19 +03:00
Alexander
5283141417 Merge branch 'master' into reduce 2019-12-05 14:23:28 +03:00
Alexander
778b5f9fed add box parameter 2019-12-04 23:13:20 +03:00
Alexander
4e092153fc add release notes 2019-11-30 18:17:10 +03:00
Andrew Murray
08cad40002
Merge pull request #4181 from pwohlhart/patch-1 
Better error messaging in PIL.Image.fromarray
 2019-11-30 21:12:05 +11:00
Alexander
8b6ad4a471 tests for supported modes 2019-11-26 03:39:57 +03:00
Alexander
335f5431de dummy method 2019-11-24 17:39:49 +03:00
Alexander
fd21de7dc4 Merge branch 'refs/heads/master' into box-in-thumbnail 
# Conflicts:
#	Tests/test_image_thumbnail.py
 2019-11-24 05:27:13 +03:00
Alexander
375556ffb5 use a box from draft in thumbnail 2019-11-24 05:24:00 +03:00
Alexander
4126f6cdf7 return chosen image mode and the box of the image 2019-11-24 04:55:49 +03:00
Alexander
2d1482b400 minor fixes related to draft 2019-11-24 04:33:34 +03:00
Hugo van Kemenade
a949d7882e
Merge branch 'master' into rm-2.7 2019-11-20 10:26:55 +02:00
Andrew Murray
40f891dfd7 Added UnidentifiedImageError 2019-11-19 21:20:02 +11:00
Hugo
12a725988e Merge remote-tracking branch 'upstream/master' into rm-2.7 2019-11-16 17:10:10 +02:00
Hugo van Kemenade
54e57768ab
Merge pull request #4128 from radarhere/info 
Copy info in Image.transform
 2019-11-13 20:27:51 +02:00
Hugo van Kemenade
24b8501d4b
Remove handling for pre-3.3 wide/narrow builds 2019-11-04 00:32:33 +02:00
Hugo van Kemenade
5006401d0b
Merge branch 'master' into rm-2.7 2019-11-03 22:48:26 +02:00
Jon Dufresne
4483642e45 Reuse deferred_error instead of _imaging_not_installed 
deferred_error is a general implementation of _imaging_not_installed.
Can reuse rather than repeating the same logic.
 2019-11-03 08:29:17 -08:00
Hugo
cc63f66575 Merge remote-tracking branch 'upstream/master' into rm-2.7 2019-11-01 13:22:56 +02:00
Hugo van Kemenade
2cf510e596
Improve handling of file resources (#3577) 
Improve handling of file resources
 2019-11-01 12:07:53 +02:00
Andrew Murray
b65fcb280a Copy info in transform 2019-10-30 22:14:01 +11:00
Andrew Murray
9b20276c45 Allow for arr KeyError 2019-10-30 07:23:08 +11:00
pwohlhart
47691906df
Better error messaging in PIL.image.fromarray 2019-10-29 10:12:03 -07:00
Andrew Murray
d9845c14c8 Lint fixes 2019-10-29 22:42:34 +11:00
Jon Dufresne
4cd4adddc3 Improve handling of file resources 
Follow Python's file object semantics. User code is responsible for
closing resources (usually through a context manager) in a deterministic
way.

To achieve this, remove __del__ functions. These functions used to
closed open file handlers in an attempt to silence Python
ResourceWarnings. However, using __del__ has the following drawbacks:

- __del__ isn't called until the object's reference count reaches 0.
  Therefore, resource handlers remain open or in use longer than
  necessary.

- The __del__ method isn't guaranteed to execute on system exit. See the
  Python documentation:

  https://docs.python.org/3/reference/datamodel.html#object.__del__

  > It is not guaranteed that __del__() methods are called for objects
  > that still exist when the interpreter exits.

- Exceptions that occur inside __del__ are ignored instead of raised.
  This has the potential of hiding bugs. This is also in the Python
  documentation:

  > Warning: Due to the precarious circumstances under which __del__()
  > methods are invoked, exceptions that occur during their execution
  > are ignored, and a warning is printed to sys.stderr instead.

Instead, always close resource handlers when they are no longer in use.
This will close the file handler at a specified point in the user's code
and not wait until the interpreter chooses to. It is always guaranteed
to run. And, if an exception occurs while closing the file handler, the
bug will not be ignored.

Now, when code receives a ResourceWarning, it will highlight an area
that is mishandling resources. It should not simply be silenced, but
fixed by closing resources with a context manager.

All warnings that were emitted during tests have been cleaned up. To
enable warnings, I passed the `-Wa` CLI option to Python. This exposed
some mishandling of resources in ImageFile.__init__() and
SpiderImagePlugin.loadImageSeries(), they too were fixed.
 2019-10-12 08:27:17 -07:00
Hugo
3e24c5fea4 Replace isStringType(t) with isinstance(t, str) 
Co-Authored-By: Jon Dufresne <jon.dufresne@gmail.com>
 2019-10-08 17:26:52 +03:00
Hugo
e118de943d Remove redundant __ne__ method 
Co-Authored-By: Jon Dufresne <jon.dufresne@gmail.com>
 2019-10-08 17:26:36 +03:00
Andrew Murray
6cd99fc3cf
Merge branch 'master' into rm-2.7 2019-10-08 18:57:27 +11:00
Jon Dufresne
64032061c0 Move several imports to the top-level of the file 
This better follows PEP 8 style guide:

https://www.python.org/dev/peps/pep-0008/#imports

> Imports are always put at the top of the file, just after any module
> comments and docstrings, and before module globals and constants.

This also avoids duplicate import code within the same file.
 2019-10-07 06:28:36 -07:00
Hugo
538d9e2e5d Upgrade Python syntax with pyupgrade --py3-plus 2019-10-07 14:30:59 +03:00
Hugo
af770a6c55 Drop support for EOL Python 2.7 2019-10-07 14:30:59 +03:00
Andrew Murray
f61af2fed0
Merge pull request #4107 from hugovk/rm-deprecated-PILLOW_VERSION 
Remove deprecated PILLOW_VERSION
 2019-10-03 20:52:48 +10:00
Hugo
f898ccbaf8 Remove deprecated PILLOW_VERSION 2019-10-01 14:43:15 +03:00
Andrew Murray
2f5e24da48 Removed warning 2019-09-25 18:52:53 +10:00
Andrew Murray
8f91eff078 Changed default frombuffer raw decoder args 2019-09-25 18:52:07 +10:00
Andrew Murray
595a8fd33c Updated warning to specify time of change 2019-09-24 20:33:02 +10:00
Andrew Murray
82f4a0d8f2 Changed WindowsViewer format to PNG 2019-09-21 09:11:32 +10:00
Andrew Murray
0009646a41 Corrected comment [ci skip] 2019-09-16 21:06:13 +10:00
Andrew Murray
ef16cb8efe ImageFileDirectory_v1 does not raise KeyError 2019-09-07 18:31:23 +10:00
Andrew Murray
f3ed44a566 Changed the Image getexif method to return a shared Exif instance 2019-08-23 06:13:20 +10:00
Andrew Murray
0b405c86be Lazily use ImageFileDirectory_v1 values from Exif 2019-08-18 23:03:43 +10:00
Andrew Murray
75fe92fa88 Updated documentation [ci skip] 2019-08-16 19:16:06 +10:00
Jon Dufresne
d50445ff30 Introduce isort to automate import ordering and formatting 
Similar to the recent adoption of Black. isort is a Python utility to
sort imports alphabetically and automatically separate into sections. By
using isort, contributors can quickly and automatically conform to the
projects style without thinking. Just let the tool do it.

Uses the configuration recommended by the Black to avoid conflicts of
style.

Rewrite TestImageQt.test_deprecated to no rely on import order.
 2019-07-06 16:11:35 -07:00
Alexander Böhn
7b815a5f1d Added an image.entropy() method 
This calculates the entropy for the image, based on the histogram.

Because this uses image histogram data directly, the existing C
function underpinning the `image.histogram()` method was abstracted
into a static function to parse extrema tuple arguments, and a new
C function was added to calculate image entropy, making use of the
new static extrema function.

The extrema-parsing function was written by @homm, based on the
macro abstraction I wrote, during the discussion of my first
entropy-method pull request: https://git.io/fhodS

The new `image.entropy()` method is based on `image.histogram()`,
and will accept the same arguments to calculate the histogram data
it will use to assess the entropy of the image.

The algorithm and methodology is based on existing Python code:

* https://git.io/fhmIU

... A test case in the `Tests/` directory, and doctest lines in
`selftest.py`, have both been added and checked.

Changes proposed in this pull request:

* Added “math.h” include to _imaging.c
* The addition of an `image.entropy()` method to the `Image`
  Python class,
* The abstraction of the extrema-parsing logic of of the C
  function `_histogram` into a static function, and
* The use of that static function in both the `_histogram` and
  `_entropy` C functions.
* Minor documentation addenda in the docstrings for both the
  `image.entropy()` and `image.histogram()` methods were also
  added.
* Removed outdated boilerplate from testing code
* Removed unused “unittest” import
 2019-06-26 19:15:47 +10:00
Hugo
cab7231e2a Format with Black 2019-06-11 11:42:05 +03:00
Hugo
169455f924 Refactor and format with Black 2019-06-10 18:22:46 +03:00
Hugo
53a7e35004 Format with Black 2019-06-10 18:22:46 +03:00
Andrew Murray
a94bd13791 Changed string formatting 2019-06-06 21:36:38 +10:00
Andrew Murray
4fa3016d67 Changed string formatting 
Co-Authored-By: Hugo <hugovk@users.noreply.github.com>
 2019-06-06 21:36:38 +10:00
Andrew Murray
77630f000c Updated resampling filter error messages 2019-06-06 21:36:38 +10:00
Hugo
169961649d
Merge pull request #3848 from radarhere/pa 
Improved palette handling for LA and PA modes
 2019-06-05 22:32:44 +03:00
Jon Dufresne
3f2cfb2027 Remove unnecessary numeric placeholders from format strings 
Unnecessary since Python 2.7.
 2019-05-26 07:07:32 -07:00
Andrew Murray
e9c0cf61f3 Fixed palette for LA and PA mode when pickling 2019-05-11 14:43:00 +10:00
Andrew Murray
691df96734 Fixed opening mmap image through Path on Windows 2019-05-04 15:00:49 +10:00
Andrew Murray
40bc46ff49 Moved ImageFile.Exif to Image.Exif 2019-04-01 20:03:02 +11:00
Hugo
4f8cfd536b
Merge pull request #3721 from radarhere/quantize 
Update palette in quantize
 2019-03-30 12:07:38 +02:00
Andrew Murray
dba38912fb Allow putpalette for LA and PA 2019-03-29 23:13:50 +11:00
Hugo
a93bcdfe0c
Merge pull request #3724 from radarhere/readonly_save 
Ensure image is mutable before saving
 2019-03-28 11:53:33 +02:00
Hugo
e7c2828b4e
Merge pull request #3740 from radarhere/remap_palette 
Corrected remap_palette documentation
 2019-03-28 11:47:36 +02:00
Hugo
0572983104
Merge pull request #3726 from radarhere/pa 
Promote P images to PA in putalpha
 2019-03-28 11:44:52 +02:00
Hugo
adbe97594e
Merge pull request #3719 from radarhere/p_rgb_rgba 
Allow RGB and RGBA values for new P images
 2019-03-27 18:03:23 +02:00
Andrew Murray
4a5666f1f4 Added transparency for all PNG greyscale modes 2019-03-27 07:41:33 +11:00
Andrew Murray
81cfede546 Corrected remap_palette documentation [ci skip] 2019-03-23 09:36:59 +11:00
Andrew Murray
f61828acdc Promote P images to PA in putalpha 2019-03-19 11:13:58 +11:00
Hugo
b8ea8814f0
Merge pull request #3683 from radarhere/exclusive 
Only close original fp in __del__ and __exit__ if original fp is exclusive
 2019-03-18 20:37:21 +02:00
Andrew Murray
9bdab56689 Replaced hasattr conditions with getattr and default 2019-03-18 09:15:37 +11:00
Andrew Murray
0b62337b6f Ensure image is mutable before saving 2019-03-17 23:37:40 +11:00
Andrew Murray
fa8ecffff2 Corrected seek documentation 2019-03-17 00:00:10 +11:00
Andrew Murray
5b9c11b426 Update palette in quantize 2019-03-16 13:36:58 +11:00
Andrew Murray
6790c2e375 Allow RGB and RGBA values for new P images 2019-03-15 17:35:05 +11:00
Andrew Murray
22b0110f89 Only close original fp in __del__ and __exit__ if original fp is exclusive 2019-03-12 08:54:43 +11:00
Hugo
125a001b66
Merge pull request #3698 from radarhere/context 
Only close exclusive fp on Image __exit__
 2019-03-11 21:41:44 +02:00
Hugo
63f31ee380
Merge pull request #3699 from glasnt/topic/quantize-dither 
Add option to set dither param on quantize
 2019-03-11 12:18:32 +02:00
Andrew Murray
878244bf38 Fixed typo 2019-03-11 11:13:39 +11:00
Katie McLaughlin
0b63579f39 Add option to set dither param on quantize 
Default the option to `1`, as per original setting
 2019-03-09 10:36:13 +11:00
Andrew Murray
b29365e8a0 Updated list of Unix utilities used to show an image [ci skip] 2019-03-07 15:24:27 +11:00
Hugo
2edab165a1 Since #2527, macOS saves to a temp PNG before showing 2019-03-06 15:57:58 +02:00
Andrew Murray
b1cc7df7ba Only close exclusive fp on Image __exit__ 2019-03-06 21:55:32 +11:00
Frédéric Chapoton
e514fbbbb1
use the already import io 
instead of importing again from io (lgtm suggestion)
 2019-03-02 21:19:57 +01:00
Andrew Murray
57807e9ce2
Merge pull request #3624 from hugovk/rm-VERSION 
Remove deprecated VERSION
 2019-03-02 11:47:59 +11:00
Hugo
d9f5f44799
Merge pull request #3632 from radarhere/thumbnail 
Do not resize in Image.thumbnail if already the destination size
 2019-02-27 23:37:20 +02:00
Andrew Murray
1162b4cf83 Do not resize if already the destination size 2019-02-13 19:26:37 +11:00
Jon Dufresne
dd1e7ccc4a Slightly simplify Image.__eq__ 
Two identical types can be compared using the `is` operator. Object
identity is slightly faster than a string comparison as well.
 2019-02-03 07:13:28 -08:00
Hugo
4d1a459fa7
Merge pull request #3574 from jdufresne/base-exc 
Catch BaseException for resource cleanup handlers
 2019-02-03 11:35:44 +02:00
Hugo
158d99b8b0 Remove deprecated VERSION 2019-01-30 15:46:14 +02:00
Jon Dufresne
51e95f6252 Catch BaseException for resource cleanup handlers 
In the event of a SystemExit or KeyboardInterrupt, file resources should
still be cleaned up before re-raising the exception.

https://docs.python.org/3/library/exceptions.html#exception-hierarchy
 2019-01-12 18:32:14 -08:00
Jon Dufresne
3e28ba3b7d Python del is a statement not a function 
https://docs.python.org/3/reference/simple_stmts.html#the-del-statement
 2019-01-12 18:28:35 -08:00
Andrew Murray
71b64dcf73 Only close __fp if not fp 2019-01-04 12:29:23 +11:00
Andrew Murray
671f7a392d Allow RGBA value for P image putpixel 2018-12-31 13:37:04 +11:00
Andrew Murray
3f6282e259 Allow RGB value for P image putpixel 2018-12-31 11:35:15 +11:00
Andrew Murray
5edeca28b6 Corrected docstring 2018-12-28 07:14:44 +11:00
Hugo
69837baba2
Merge pull request #3490 from radarhere/open_files 
Updated open files documentation
 2018-12-13 21:14:22 +02:00
Hugo
3ed5dcc928
Merge pull request #3467 from hugovk/lint-can-fail 
CI: Allow lint job to fail
 2018-12-13 21:09:58 +02:00
Hugo
961fecb35c
Merge pull request #3261 from radarhere/fp 
Resolve __fp when closing and deleting
 2018-12-13 21:09:23 +02:00
Andrew Murray
91f727051b Updated open files documentation 2018-12-11 14:39:10 +11:00
Andrew Murray
ad26f53bf6 Updated comments 2018-12-05 18:19:00 +11:00
Hugo
c353225851 Prefer 'except Exception:' to bare 'except:' 2018-12-04 23:25:28 +02:00
Andrew Murray
47775f3d50 Resolve __fp when closing and deleting 2018-11-17 21:56:06 +11:00
Hugo
0b7910c7cd flake8: E402 module level import not at top of file 2018-11-11 19:01:10 +02:00
Hugo
91da8ff31d flake8: F401 imported but unused 2018-11-11 19:01:10 +02:00
Andrew Murray
e3220c0f4d Changed capitalisation 2018-11-11 16:00:48 +11:00
Andrew Murray
747eccbfc2 Close exclusive fp on open exception 2018-11-09 11:35:08 +11:00
Andrew Murray
929f7397db Line too long 2018-10-21 18:26:08 +11:00
Andrew Murray
6099ddeef9 Expected 1 blank line before a nested definition 2018-10-21 17:59:18 +11:00
Erich Seifert
9807f1ad56
Fixed documentation on bilevel conversion 
The cutoff when converting an image to bilevel (mode "1") is 128. This should resolve issue #3394.
 2018-10-05 01:11:24 +02:00
Hugo
2fa54408d4
Merge pull request #3203 from radarhere/size 
Changed Image size property to be read-only by default
 2018-09-30 14:35:35 +03:00
Hugo
a0fda60662 Use snake_case 2018-09-30 15:34:33 +10:00
Andrew Murray
82d942c3d8 Added warnings if image file identification fails due to lack of support 2018-09-30 15:34:27 +10:00
Andrew Murray
0adeb82e98 Changed Image size property to be read-only by default 2018-09-30 13:45:18 +10:00