Imports camlistore.org/third_party/golang.org/x/image/riff camlistore.org/third_party/golang.org/x/image/vp8 camlistore.org/third_party/golang.org/x/image/vp8l camlistore.org/third_party/golang.org/x/image/webp/nycbcra Standard library imports bytes errors image image/color io