python-pillow/Pillow
1
1
Fork 0
mirror of https://github.com/python-pillow/Pillow.git synced 2025-02-03 13:14:27 +03:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1184 from darkfeline/add-doc

Browse Source 
Clarify docstring about mask values [ci skip]
This commit is contained in:
Hugo 2015-05-05 19:29:04 +03:00
commit f21b45c976
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
PIL/Image.py
View File

@ -1288,11 +1288,11 @@ class Image:
images (in the latter case, the alpha band is used as mask).
Where the mask is 255, the given image is copied as is. Where
the mask is 0, the current value is preserved. Intermediate
values can be used for transparency effects.
values will mix the two images together, including their alpha
channels if they have them.
Note that if you paste an "RGBA" image, the alpha band is
ignored. You can work around this by using the same image as
both source image and mask.
See :py:meth:`~PIL.Image.Image.alpha_composite` if you want to
combine images with respect to their alpha channels.
:param im: Source image or pixel value (integer or tuple).
:param box: An optional 4-tuple giving the region to paste into.