Okay, I do see the "squares" problem now. Does it come from the black "frame" I made around the picture, which is the only really black thing? That would mean the main issue in adjusting the picture is actually to blend it nicely from the light center to the dark corners.Ahruman wrote:Sure.
Yours nicely demonstrates the “squares” problem (and possibly gives an appreciation of how blobs are generated).
For reference, what I did was:If I’d thought it through properly, I’d have avoided the first level adjustment.
- Trim off some of the fat, leaving a generous border.
- Adjust levels so that the background was reasonably close to black.
- Paint out most of the background stars, producing a roughly circular pattern.
- Blur.
- Crop close to final area.
- Apply a new levels adjustment as an effect layer, with a radial-gradient mask, to ensure black edges.
- Crop away the black bits.
Unfortunately the steps described by you are way above the capability of my graphics software (I'm still using only Graphic Converter). But I'll try my best.
Because, in principle, I like these blurs way more than those made from galaxy-pictures.