how to send image to other server using curl?

i am implimenting clipping magic js api in a project. i need to send image to their server from my backend using curl they have given a curl code

 -u 6677:uhm1qi5qg6jc22cr4qudtjvt173lu35hl9b75j8qjtpkgkb5a9bk \ 
 -F image=@example.jpg

https://clippingmagic.com/api/documentation this is the doc url which is not good enough. I am not able to send image to their server . thanks for your help and time.

via Chebli Mohamed