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432 Commits

Author SHA1 Message Date
Andrew Murray
0a56d9b287
Merge branch 'master' into simplified 2021-03-29 19:37:55 +11:00
Hugo van Kemenade
e405ab300b
Merge pull request #5351 from radarhere/categories 2021-03-28 14:34:50 +03:00
Andrew Murray
f799915d6f
Merge pull request #5304 from nulano/5300 
Do not premultiply alpha when resizing with Image.NEAREST resampling
 2021-03-28 16:02:01 +11:00
Andrew Murray
71cd97a519 Added deprecation warnings 2021-03-28 15:51:28 +11:00
Hugo van Kemenade
5e1d304769
Merge pull request #5353 from radarhere/quantize_attributes 
Use quantization method attributes
 2021-03-27 20:01:49 +02:00
nulano
49fa3656b1 do not premultiply alpha when resizing with Image.NEAREST resampling 2021-03-23 13:16:20 +01:00
Andrew Murray
4e0bc3bab6 Use quantization method attributes 2021-03-22 19:44:56 +11:00
Andrew Murray
0ff9879171 Document supported quantization methods for RGBA images 2021-03-22 19:21:31 +11:00
Andrew Murray
ab56edb49f Documented default quantization method 2021-03-22 19:18:36 +11:00
Andrew Murray
36a4b055bb Updated comments 2021-03-15 12:50:30 +11:00
Andrew Murray
68719fe6ea
Merge branch 'master' into exif 2021-03-15 12:41:45 +11:00
Andrew Murray
c52b45df62 Removed automatic retrieval of GPS IFD 2021-03-15 12:33:06 +11:00
Andrew Murray
ca204ba04f Removed Image._MODEINFO 2021-03-07 14:21:27 +11:00
Andrew Murray
e437a8f981 Do not edit text of mode strings 2021-03-07 13:14:07 +11:00
Andrew Murray
8206f14419 Simplified code 2021-03-06 21:44:31 +11:00
Andrew Murray
690cf9ebe2 Allow alpha_composite destination to be negative 2021-03-06 20:54:21 +11:00
Andrew Murray
e763f8f2be Save interop IFD when converting Exif to bytes 2021-02-22 07:47:59 +11:00
Andrew Murray
b25bc40009 Simplified code 
Co-authored-by: Konstantin Kopachev <kkopachev@popsugar.com>
 2021-02-22 07:47:05 +11:00
Andrew Murray
4b14f0102d Save base IFDs when converting Exif to bytes 2021-02-22 07:47:05 +11:00
Andrew Murray
faf8fad76d Stopped flattening EXIF IFD into getexif() 2021-02-22 07:47:05 +11:00
Andrew Murray
587e073dac Moved case transformation before initialization check 2021-02-05 20:28:34 +11:00
Piolie
0c1675a143 Make formats parameter in Image.open accept aNy cAsE 2021-02-04 22:47:53 -03:00
Andrew Murray
c10bf8d9a7 Improved docstring [ci skip] 2021-01-31 13:14:14 +11:00
Mark Laagland
e6ff82b9ab Small fix for convert documentation of Image.py 
[ci skip]
 2021-01-24 22:49:27 +01:00
Andrew Murray
4eccadced4 Document that getcolors() returns colors in the image mode [ci skip] 2021-01-09 21:30:16 +11:00
Uriel Martinez
7f5dbb7c9b
Update src/PIL/Image.py 
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
 2021-01-02 21:57:24 -06:00
Andrew Murray
3c482b1b0b Changed list of single item dictionaries to dictionary 2020-12-30 23:10:29 +11:00
Andrew Murray
ad9614be7a Renamed variable 2020-12-30 22:46:49 +11:00
Alexander
1ff61bcaa6 use offset for all binary input functions instead of slicing 2020-12-30 19:10:50 +11:00
Alexander
3757b8c748 remove extra i8 calls where input is proved bytes[] or int 2020-12-30 19:04:11 +11:00
Hugo van Kemenade
85d61ca7d5
Merge pull request #5139 from radarhere/repr_png 
Added exception explaining that _repr_png_ saves to PNG
 2020-12-29 12:43:22 +02:00
Hugo van Kemenade
5c64438792
Merge pull request #5090 from radarhere/valueerror 
Do not catch a ValueError only to raise another
 2020-12-29 12:19:16 +02:00
UrielMaD
19bac31804 XMP feature added 2020-12-27 22:28:03 -06:00
UrielMaD
7968279c13 XMP feature added 2020-12-27 22:24:38 -06:00
UrielMaD
2f29f1306f XMP feature added 2020-12-27 22:01:27 -06:00
UrielMaD
762235fb06 XMP feature added 2020-12-27 19:01:15 -06:00
UrielMaD
9947655b93 XMP feature added 2020-12-27 18:46:07 -06:00
UrielMaD
50e88764e8 XMP feature added 2020-12-27 18:39:16 -06:00
UrielMaD
eeee980cf7 XMP feature added 2020-12-27 18:36:13 -06:00
Andrew Murray
fdce845364 Added exception explaining that _repr_png_ saves to PNG 2020-12-27 15:36:16 +11:00
Andrew Murray
ff0ad9af34 Do not catch a ValueError only to raise another 2020-12-12 23:36:57 +11:00
Andrew Murray
a666c91e10 Allow putpalette to accept 1024 integers to include alpha values 2020-12-12 14:12:30 +11:00
Hugo van Kemenade
0893f502c3 Document when deprecations will be removed [CI skip] 2020-12-10 14:32:43 +02:00
Andrew Murray
7e2015c75f init() if one of the formats is unrecognised 2020-11-11 21:05:57 +11:00
Andrew Murray
ddbd529573 Corrected comment 2020-10-09 01:16:23 +11:00
Andrew Murray
7a1f0f6a8f Fixed bug in Exif __delitem__ 2020-10-05 09:45:05 +11:00
Andrew Murray
2e029d9a79
Merge pull request #4840 from essarrjay/patch-1 
Image.thumbnail docstring: added missing filters
 2020-09-12 11:03:56 +10:00
nulano
a340dc5fd3 Merge remote-tracking branch 'upstream/master' into formats 2020-09-04 21:07:34 +02:00
Hugo van Kemenade
e0eec1eb56 Merge branch 'master' into rm-3.5 2020-09-01 20:16:46 +03:00
Andrew Murray
f9f492b2b1 Added HAMMING to thumbnail docstring [ci skip] 2020-08-27 19:55:24 +10:00
Andrew Murray
70d868ef59
Lint fix 
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
 2020-08-15 13:56:51 +10:00
essarrjay
fce34a0d7b
Fixed line-length formatting 
Fixed line length issues in formatting [ci skip]
 2020-08-05 12:11:22 -07:00
essarrjay
9cdfb296e5
Image.thumbnail docstring: added Image.BOX filter 
[ci skip] updated docstring of Image.thumbnail to include Image.BOX filter as a resampling option.
 2020-08-05 11:18:18 -07:00
Andrew Murray
1c85b9fec7 Document exception [ci skip] 2020-08-05 11:32:30 +01:00
nulano
30c4945d9c document Image.open(formats=...) parameter 2020-08-03 00:38:59 +02:00
nulano
2b061b68db add formats parameter to Image.open to restrict list of formats attempting to read an image file 2020-08-03 00:24:02 +02:00
Hugo van Kemenade
10615a7da7 Upgrade Python syntax for 3.6+ 
Co-authored-by: nulano <nulano@nulano.eu>
 2020-07-30 10:09:18 +03:00
Andrew Murray
11de331886
Merge pull request #4798 from hugovk/rm-deprecated-notimplemented 
Remove long-deprecated Image.py functions
 2020-07-24 20:48:20 +10:00
Andrew Murray
265bfef36e Improved documentation 2020-07-21 20:46:50 +10:00
Andrew Murray
56a43a5fa7 Fixed typo 2020-07-21 20:42:42 +10:00
Hugo van Kemenade
40aefc6ba5 Remove im.offset, deprecated in 2001; and fromstring and tostring, deprecated in 2013 2020-07-17 10:55:20 +03:00
nulano
7ce6a15062 Merge remote-tracking branch 'upstream/master' into refs-animated 
# Conflicts:
#	docs/reference/Image.rst
 2020-07-11 12:33:36 +02:00
nulano
73c5dffb5a fix ImageTransformHandler and ImagePointHandler references 2020-07-11 13:25:10 +10:00
nulano
0083ebb3d4 fix various reference typos 2020-07-11 13:25:10 +10:00
nulano
74899cd6cf
Merge branch 'master' into refs-animated 2020-07-02 12:58:09 +01:00
nulano
9019af5f32
Merge branch 'master' into refs-const 2020-06-28 10:55:26 +01:00
Andrew Murray
4ae694cd7b
Merge pull request #4712 from cool-RR/2020-06-12-raise-from 
Fix exception causes all over the codebase
 2020-06-28 15:22:05 +10:00
nulano
f5b4565d8c document is_animated and n_frames 2020-06-27 17:24:13 +02:00
nulano
3342270947 fix Image constants references 
(cherry picked from commit 5511111f3b)
 2020-06-27 15:39:55 +02:00
Andrew Murray
ee06255ff0 Deprecated _showxv 2020-06-23 22:20:58 +10:00
Andrew Murray
9979efff12
Merge pull request #4646 from nulano/show-command 
Deprecate Image.show(command="...")
 2020-06-23 19:47:57 +10:00
nulano
c15dda4308
fix typo 
Co-authored-by: Andrew Murray <3112309+radarhere@users.noreply.github.com>
 2020-06-21 12:16:27 +01:00
Andrew Murray
34ba2ae139 Removed comments suggesting users override functions 2020-06-21 20:26:10 +10:00
Ram Rachum
2f0d430807 Fix exception causes all over the codebase 2020-06-21 13:21:25 +03:00
nulano
2155c16ae0
improve warning wording 
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
 2020-06-20 12:00:30 +01:00
nulano
5e8854b8db add note about overriding Image.show behaviour 2020-06-15 14:54:38 +02:00
nulano
097104278b add docs for features module 2020-06-13 04:28:02 +02:00
Andrew Murray
09d58147ca Changed errors to be code formatted, instead of bold 2020-06-12 23:57:21 +10:00
Hugo van Kemenade
794e9f0f0e
Merge pull request #4637 from radarhere/v2 
Use ImageFileDirectory_v2 in Image.Exif
 2020-06-10 06:55:15 +03:00
Andrew Murray
0cc2e696cb Corrected reading EXIF metadata without prefix 2020-06-07 20:01:04 +10:00
Hugo van Kemenade
4363507d16
Merge pull request #4608 from radarhere/numpy 2020-06-03 18:43:47 +03:00
Andrew Murray
ccac9e1a3a Changed to ImageFileDirectory_v2 2020-06-03 22:11:51 +10:00
Hugo van Kemenade
02d55b79c1
Merge pull request #4560 from radarhere/xmp 2020-06-01 10:49:00 +03:00
nulano
66954ad176 deprecate Image.show(command="...") 2020-05-25 18:57:02 +02:00
Andrew Murray
b8ec793898 Fixed ZeroDivisionError in thumbnail 2020-05-15 18:29:52 +10:00
Andrew Murray
59957fb8d8 Added support for 1-D NumPy arrays 2020-05-04 20:07:23 +10:00
Andrew Murray
d5c3814691 Changed default offset for Exif 2020-05-01 19:43:37 +10:00
Andrew Murray
b65e72b2fc Updated example code to new-style class [ci skip] 2020-04-23 20:05:30 +10:00
Hugo
d21e45536a Link to Filters concept from methods' parameters [CI skip] 2020-04-23 11:18:24 +03:00
Andrew Murray
f21816918e Allow ImageMagick zTXt chunks to be extracted after copy() 2020-04-16 21:14:19 +10:00
Andrew Murray
1e63f772f8 Parse orientation from XMP tags 2020-04-16 21:05:34 +10:00
Hugo
dda6145fce Since Python 3.3 IOError and WindowsError have been merged into OSError 2020-04-10 12:57:29 +03:00
Hugo van Kemenade
761edafed8
Merge branch 'master' into re-add-PILLOW_VERSION 2020-03-31 12:07:14 +03:00
Andrew Murray
7597a9fbfd Raise warning for more operations 2020-03-31 17:41:47 +11:00
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