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51 lines
1.9 KiB
ReStructuredText
51 lines
1.9 KiB
ReStructuredText
.. py:module:: PIL.ImageChops
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.. py:currentmodule:: PIL.ImageChops
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:py:mod:`~PIL.ImageChops` ("Channel Operations") Module
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=======================================================
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The :py:mod:`~PIL.ImageChops` module contains a number of arithmetical image
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operations, called channel operations (“chops”). These can be used for various
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purposes, including special effects, image compositions, algorithmic painting,
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and more.
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For more pre-made operations, see :py:mod:`~PIL.ImageOps`.
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At this time, most channel operations are only implemented for 8-bit images
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(e.g. “L” and “RGB”).
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Functions
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---------
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Most channel operations take one or two image arguments and returns a new
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image. Unless otherwise noted, the result of a channel operation is always
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clipped to the range 0 to MAX (which is 255 for all modes supported by the
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operations in this module).
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.. autofunction:: PIL.ImageChops.add
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.. autofunction:: PIL.ImageChops.add_modulo
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.. autofunction:: PIL.ImageChops.blend
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.. autofunction:: PIL.ImageChops.composite
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.. autofunction:: PIL.ImageChops.constant
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.. autofunction:: PIL.ImageChops.darker
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.. autofunction:: PIL.ImageChops.difference
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.. autofunction:: PIL.ImageChops.duplicate
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.. autofunction:: PIL.ImageChops.invert
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.. autofunction:: PIL.ImageChops.lighter
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.. autofunction:: PIL.ImageChops.logical_and
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.. autofunction:: PIL.ImageChops.logical_or
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.. autofunction:: PIL.ImageChops.logical_xor
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.. autofunction:: PIL.ImageChops.multiply
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.. autofunction:: PIL.ImageChops.soft_light
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.. autofunction:: PIL.ImageChops.hard_light
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.. autofunction:: PIL.ImageChops.overlay
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.. py:method:: PIL.ImageChops.offset(image, xoffset, yoffset=None)
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Returns a copy of the image where data has been offset by the given
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distances. Data wraps around the edges. If **yoffset** is omitted, it
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is assumed to be equal to **xoffset**.
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.. autofunction:: PIL.ImageChops.screen
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.. autofunction:: PIL.ImageChops.subtract
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.. autofunction:: PIL.ImageChops.subtract_modulo
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