2 Quick Ways to Add a Glow Effect in GIMP (Detailed Guides)
A GIMP képszerkesztő program bemutatása (Szűrők alkalmazása) - ppt letölteni
automation - GIMP: custom filters out of other filter sequences? - Graphic Design Stack Exchange
Gimp Filters and Effects
Add the Blur Filter to Image in GIMP - VisiHow
Gimp-eszköztár,szűrők - ppt letölteni
My New Gimp filter that does a edge detection in transparency. https://github.com/LinuxBeaver/gegl-edge-extract This is my final filter because I need help making more filters but don't have the resources. This might change
How to Use Filters in GIMP (7 Popular & Useful Filters)
GIMP : Custom 'high pass' filter for sharpening digital images / HD - YouTube