tree bd85334aec06bc89b23e4fe6010e740c2d65f30a
parent 33659d3de4f578c2f0c64af782d17fa8688d643f
author Nigel Tao <nigeltao@golang.org> 1560564229 +1000
committer Nigel Tao <nigeltao@golang.org> 1560862091 +0000

ccitt: implement NewReader and DecodeIntoGray

The testdata/bw-gopher.png image was derived from
testdata/bw-uncompressed.tiff

The testdata/*ccitt* data was generated from a custom CCITT encoder:
https://go-review.googlesource.com/c/image/+/174139/10/ccitt/writer.go

Updates golang/go#19443

Change-Id: I53b7acd807aa9a627517ede5bc3316d6f1fe4724
Reviewed-on: https://go-review.googlesource.com/c/image/+/182219
Reviewed-by: Benny Siegert <bsiegert@gmail.com>