High Pass filtering 2.8 vs. 2.10

[rich2005]

Quote:You can easily test it yourself in 2.8:
duplicate image
desaturate
invert

the image does not turn gray unless you reduce the opacity to 50%. And the details will come out after you applied the Gaussian Blur.

I did indeed 'test it myself in 2.8' which prompted my comment, because duplicate layer, desaturate, invert gives this. https://i.imgur.com/CgP14nb.jpg Maybe some procedures missing.

Worth a look at the meetthegimp video. Rolf is a bit verbose but it is a good show. https://blog.meetthegimp.org/episode-164...harpening/