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New Image.getchannel method

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Alexander 2017-08-09 01:58:22 +03:00
parent e0f69cb2e1
commit 0002e18c74
1 changed files with 16 additions and 0 deletions
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16
PIL/Image.py
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@ -1959,6 +1959,22 @@ class Image(object):
ims.append(self._new(self.im.getband(i))) ims.append(self._new(self.im.getband(i)))
return tuple(ims) return tuple(ims)
def getchannel(self, channel):
"""
Returns an image contained single channel of the source image.
:param channel: What channel to return. Could be index
(0 for "R" channel of "RGB") or channel name
("A" for alpha channel of "RGBA").
:returns: An image in "L" mode.
"""
if isStringType(channel) and len(channel) == 1:
if channel in self.im.mode:
channel = self.im.mode.index(channel)
return self._new(self.im.getband(channel))
def tell(self): def tell(self):
""" """
Returns the current frame number. See :py:meth:`~PIL.Image.Image.seek`. Returns the current frame number. See :py:meth:`~PIL.Image.Image.seek`.