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+--- Thread: weird halos after Gaussian Blur (/Thread-weird-halos-after-Gaussian-Blur)
weird halos after Gaussian Blur - Espermaschine - 05-06-2018
You guys experiencing this as well ?
I fill a selection with white, open the Gaussian Blur, play around with the values and everything looks fine but after i hit OK, the blur looks weird and has some kind of halo....
[attachment=1691]
RE: weird halos after Gaussian Blur - Ofnuts - 05-06-2018
I see it, but I think it is an optical illusion. If it where real, there would be a threshold value that would create a white circle with a white ring.
Edit: extreme values of the threshold (on both sides) show that the filters is not strictly isotropic.
RE: weird halos after Gaussian Blur - Espermaschine - 05-06-2018
(05-06-2018, 04:28 PM)Ofnuts Wrote: the filters is not strictly isotropic.
what does that mean ?
RE: weird halos after Gaussian Blur - Ofnuts - 05-06-2018
Isotropic: identical in all directions. The blurred circle should remain a circle. In practice for the extreme values, it looks like a rounded diamond, so the diagonals are not strictly like the verticals/horizontals.