Just a vid of the Active regions today

[Nigella Bryant]

It's just a straight video, not sequaence but interesting all the same plus some screenshots in CaK and HA.

Sun_114204_pipp.avi

Edited April 21, 2022 by Nigella Bryant

[vlaiv]

I expected to see some processed animation in that video

Since I downloaded it - why not give it a "spin" in AS!3 and Registax6?

I down sampled it in the end to 50% of the size - as it seems a bit over sampled as is.

[Nigella Bryant]

1 hour ago, vlaiv said:

I expected to see some processed animation in that video

Since I downloaded it - why not give it a "spin" in AS!3 and Registax6?

I down sampled it in the end to 50% of the size - as it seems a bit over sampled as is.

I've never attempted animation but would love to know how vlaiv.

[vlaiv]

44 minutes ago, Nigella Bryant said:

I've never attempted animation but would love to know how vlaiv.

I've never done it myself (nor any Ha solar imaging for that matter), but here is how I would do it:

- Shoot the same as above - a video of solar disk or some features, every couple of minutes (it will take up a lot of space)

- Process each image individually like you normally do - stacking, wavelets / deconvolution

- Register all subs against each other or rather against one reference frame. Use software that is capable of registering against features. ImageJ with plugins should be able to do it. If you are doing full disk imaging - then align disk against disk rather than features as you want rotation to show in animation.

- Normalize all subs against reference - meaning make them equally bright.

- Export as animated sequence - either as sequence of frames or maybe do feature interpolation (morph) between subsequent subs (morph makes animation much smoother but can look artificial if there is large difference between subs).

[Freddie]

ImPPG is your friend when it comes to animations.

[Pete Presland]

Very nice