Frame split function for film strip

[ycjhjiangxiao-commits]

I use a modified Epson V750 (improved focus) to scan film strips with multiple frames. I have modified the code to extend the half frame split & crop tool to multiple frames using Claude. So far it is functional, but it might still has bugs. Since I don't know how to code, it will be great if this function can be improved and implemented.

I am looking for guidance on how to share what I did. Thanks!