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Merge pull request #3386 from radarhere/convert

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Improved convert documentation
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Hugo 2018-09-29 16:48:08 +03:00 committed by GitHub
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src/PIL/Image.py
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@ -873,12 +873,17 @@ class Image(object):
use other thresholds, use the :py:meth:`~PIL.Image.Image.point` use other thresholds, use the :py:meth:`~PIL.Image.Image.point`
method. method.
When converting from "RGBA" to "P" without a **matrix** argument,
this passes the operation to :py:meth:`~PIL.Image.Image.quantize`,
and **dither** and **palette** are ignored.
:param mode: The requested mode. See: :ref:`concept-modes`. :param mode: The requested mode. See: :ref:`concept-modes`.
:param matrix: An optional conversion matrix. If given, this :param matrix: An optional conversion matrix. If given, this
should be 4- or 12-tuple containing floating point values. should be 4- or 12-tuple containing floating point values.
:param dither: Dithering method, used when converting from :param dither: Dithering method, used when converting from
mode "RGB" to "P" or from "RGB" or "L" to "1". mode "RGB" to "P" or from "RGB" or "L" to "1".
Available methods are NONE or FLOYDSTEINBERG (default). Available methods are NONE or FLOYDSTEINBERG (default).
Note that this is not used when **matrix** is supplied.
:param palette: Palette to use when converting from mode "RGB" :param palette: Palette to use when converting from mode "RGB"
to "P". Available palettes are WEB or ADAPTIVE. to "P". Available palettes are WEB or ADAPTIVE.
:param colors: Number of colors to use for the ADAPTIVE palette. :param colors: Number of colors to use for the ADAPTIVE palette.