(12-05-2023, 08:26 AM)harshamutu Wrote: Found the plugin folder to place the extract. It does not work perhaps I am missing something. I do not know how to run ./configure or something. I appreciate if someone could help me in this.
Yes you are missing a lot, if you download from there https://sourceforge.net/projects/refocus/files/refocus/ , you do need to OPEN the uncompressed folder and to launch the install-sh to install it, you can't just put that folder in your plugins folder > but this might not work on the Microsoft's Windows as Microsoft does not accept file without extension (and many other limitations), thus I think it was made for a *nix system like Linux or macos Although I'm not sure if in 2003 Apple was already using the FLOSS Mach kernel with BSD...
Recommendation? download the file from Rich2005!
BTW, refocus is from February 2003... there are better alternative like G'MIC as @denzjos said, you can also use a high pass filter in GIMP or use the technique of Freaky focus (yes it's for photoshop, but he is just using ONLY Layers' mode and layer group > Thus straight out of the box applicable to GIMP!)
Patrice