Imagine if we had a GEGL filter where you just click on an image to get an effect (like the pics below). That is already somewhat possible via built in presets (like I did with gegl:metallic), but there is no image preview obviously.
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Something like this would be very easy for me to turn into a GEGL plugin if you exclude the vignette. It may even be possible with my color light fusion filter already.
https://github.com/LinuxBeaver/GEGL-Col ... ing-Fusion
but once again no image preview like the Instagram filters do. So its sad knowing I have this limitation that I can't get past. I'd do more with GEGL if I could.