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>
5 files changed
tree: bd85334aec06bc89b23e4fe6010e740c2d65f30a
  1. bmp/
  2. ccitt/
  3. cmd/
  4. colornames/
  5. draw/
  6. example/
  7. font/
  8. math/
  9. riff/
  10. testdata/
  11. tiff/
  12. vector/
  13. vp8/
  14. vp8l/
  15. webp/
  16. .gitattributes
  17. .gitignore
  18. AUTHORS
  19. codereview.cfg
  20. CONTRIBUTING.md
  21. CONTRIBUTORS
  22. go.mod
  23. go.sum
  24. LICENSE
  25. PATENTS
  26. README.md
README.md

Go Images

This repository holds supplementary Go image libraries.

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