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
This commit is contained in:
James Zern 2022-11-21 10:41:44 -08:00
parent c6ac672dbc
commit 786497e48a

View File

@ -464,7 +464,7 @@ image and encoded using the methods described in
During decoding, `ColorTransformElement` instances of the blocks are
decoded and the inverse color transform is applied on the ARGB values of
the pixels. As mentioned earlier, that inverse color transform is just
subtracting `ColorTransformElement` values from the red and blue
adding `ColorTransformElement` values to the red and blue
channels.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~