Sun with Seestar - oversharpened?

[Brutha]

Hi All,

Have only had one clear day / night since I got my Seestar, so am now playing around with processing - all the astro programs are quite new to me so finding my feet a bit!

This comes from a one minute AVI taken the other day through the provided solar filter:

• Stacked in Autostakkert
• Sharpened in waveSharp (bilateral filter which avoids bright lines at edge of sun)
• Colour adjusted and cropped in Photoshop

What I'm wondering is if I've oversharpened it - it looks like the grain of the Sun is showing nicely (since I can also see detail around the sunspots in the top left). But maybe I am just sharpening noise in the image!

Any thoughts?

Thanks!

EDIT: Oops, I think I used the wrong forum and it should have gone in "Imaging - Solar" - is it possible for some kind mod to move this? Thanks!

Edited February 4 by Brutha
Wrong forum used!

[Rusted]

Some nice detail! Good first effort! Keep at it!

I liken a decent white light image of the sun to a hen's egg. Subtle but just visible surface texture. Your image is leaning just a little too far towards over-sharpening. IMO. The uniform texture is the clue. The texture should vary across the disk and be finer at this scale.

I am not familiar with waveSharp. You might try ImPPG. A free software much loved by solar imagers everywhere. Again it has the potential to seriously over-sharpen when used clumsily. A gentle touch will astonish with the real, solar detail which can be brought out.

[Brutha]

3 hours ago, Rusted said:

Some nice detail! Good first effort! Keep at it!

I liken a decent white light image of the sun to a hen's egg. Subtle but just visible surface texture. Your image is leaning just a little too far towards over-sharpening. IMO. The uniform texture is the clue. The texture should vary across the disk and be finer at this scale.

I am not familiar with waveSharp. You might try ImPPG. A free software much loved by solar imagers everywhere. Again it has the potential to seriously over-sharpen when used clumsily. A gentle touch will astonish with the real, solar detail which can be brought out.

Thanks! Will play further!

[Brutha]

Ok, managed to sneak out for 5 minutes during lunch! Sun a bit livelier today - still some way to go to get the best out of the software, but happy with this one!

[Rusted]

That is pretty remarkable!

You even managed to cram it full of spots this time!