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webp-lossless-bitstream-spec: fix inv color txfm description
The prose describing the process was missed in: 44dd765d webp-lossless-bitstream-spec: fix ColorTransform impl Bug: webp:448 Bug: webp:551 Change-Id: If5fb95103ffedeed113e3ad62510f3a19bfd280e
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@ -464,7 +464,7 @@ image and encoded using the methods described in
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During decoding, `ColorTransformElement` instances of the blocks are
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During decoding, `ColorTransformElement` instances of the blocks are
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decoded and the inverse color transform is applied on the ARGB values of
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decoded and the inverse color transform is applied on the ARGB values of
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the pixels. As mentioned earlier, that inverse color transform is just
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the pixels. As mentioned earlier, that inverse color transform is just
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subtracting `ColorTransformElement` values from the red and blue
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adding `ColorTransformElement` values to the red and blue
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channels.
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channels.
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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