2020.03.16 22:17 "Re: [Tiff] Old-Style JPEG Support", by Bob Friesenhahn

Photometric Interpretation: min-is-black

YCbCr Subsampling: 2, 2

My understanding is that the above two parameters are indeed conflicting. It may be that warning about the subsampling request and then ignoring it is better than a hard error. I don't know how easy that would be to implement.

Bob
--
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
Public Key, http://www.simplesystems.org/users/bfriesen/public-key.txt