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Merge pull request #408 from wiredfool/convert_doc

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Image.convert mode 1 documentation update.
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Alex Clark ☺ 2013-11-29 15:15:23 -08:00
commit eebb8c2a97
1 changed files with 7 additions and 4 deletions
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11
PIL/Image.py
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@ -675,15 +675,18 @@ class Image:
L = R * 299/1000 + G * 587/1000 + B * 114/1000
When translating a greyscale image into a bilevel image (mode
"1"), all non-zero values are set to 255 (white). To use other
thresholds, use the :py:meth:`~PIL.Image.Image.point` method.
The default method of converting a greyscale ("L") or "RGB"
image into a bilevel (mode "1") image uses Floyd-Steinberg
dither to approximate the original image luminosity levels. If
dither is NONE, all non-zero values are set to 255 (white). To
use other thresholds, use the :py:meth:`~PIL.Image.Image.point`
method.
:param mode: The requested mode.
:param matrix: An optional conversion matrix. If given, this
should be 4- or 16-tuple containing floating point values.
:param dither: Dithering method, used when converting from
mode "RGB" to "P".
mode "RGB" to "P" or from "RGB" or "L" to "1".
Available methods are NONE or FLOYDSTEINBERG (default).
:param palette: Palette to use when converting from mode "RGB"
to "P". Available palettes are WEB or ADAPTIVE.