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29 lines
971 B
ReStructuredText
29 lines
971 B
ReStructuredText
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3.4.0
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-----
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New resizing filters
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====================
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Two new filters available for ``Image.resize()`` and ``Image.thumbnail()``
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functions: ``BOX`` and ``HAMMING``. ``BOX`` is the high-performance filter with
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two times shorter window than ``BILINEAR``. It can be used for image reduction
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3 and more times and produces a more sharp result than ``BILINEAR``.
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``HAMMING`` filter has the same performance as ``BILINEAR`` filter while
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providing the image downscaling quality comparable to ``BICUBIC``.
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Both new filters don't show good quality for the image upscaling.
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Append images to GIF
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====================
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Additional frames can now be appended when saving a GIF file, through the
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``append_images`` argument. The new frames are passed in as a list of images,
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which may be have multiple frames themselves.
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Note that the ``append_images`` argument is only used if ``save_all`` is also
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in effect, e.g.::
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im.save(out, save_all=True, append_images=[im1, im2, ...])
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