Scalloped coin image

I am working my way through western trade tokens and adding them to the catalog. Since they are numismatically significant in the history of the West I felt like I should begin adding them. Everything was fine until I made it to a scalloped trade token that I have. I have been making sure the backgrounds are white, the coin pics are as clear as I can make them and the tokens has as much detail as I can give them so no one will delete them. So my question is, now do I make a white background for my scalloped token?

I often use PhotoScape for editing my Pictures (low tech but is free and gets the job done).
After adjusting the rotation I cut out as much background as possible and edit the original size picture with the tool paint brush.
It has a kind of soft boarder not completely white so you don't have to be 100% accurate and doesn't look to horrible.
Then resize the image to the resolution of my liking and I am done.


Or if you have something like Photoshop, there are options to extract backgrounds from higher contrast pictures ... much faster but might not work perfectly all the time.

I use Pixlr, which is great, quick and easy to use. You import your picture into it, use the round select tool, invert selection, cut. Three steps! And no downloading anything. I have been going through the catalog doing this for the coins that don't have a white background.

There was this topic from last year ...
https://en.numista.com/forum/topic28635.html#p238814

Not yet used it myself, but impressive that it can cut the flower from the background,
so scalloped coins should be easy.

I have tried it but unless you have such a huge and clear contrast it won't work as good as seen on this example
The biggest problems are the shadows of coins.