The past few months, I've been doing a lot with #SSTV but one thing that has frustrated me, is the lack of public domain test cards that can be used.
I've been using the Philips PM5544 test pattern, which is a good one, but it's rendered for PAL resolution, which rarely corresponds to those used with SSTV.
Some have used BBC's Test Card F: but here is a problem -- it's copyrighted. Not sure how legal it is to use this. I'd rather not invite legal trouble using it.
The RCA Chief test card is a good one, public domain, but it is monochrome, and also not quite the right resolution for SSTV either.
I came up with these:
https://codeberg.org/sjlongland/libsstvenc/src/branch/master/testcards
I'll make these available in the public domain, so use however you feel.





