Registax 6 issue

[barx1963 (Malcolm)]

I dabble in a little solar imaging from time to time. I have had an issue crop up while attempting to process AVIs from my new Point Grey Chamelon 3 camera.
The videos are the best I have ever done but when I process them in Registax 6, after the stacking step, I just end up with a white screen!
My process I follow is this
1. From select menu, pick the video I want to process
2. From the "Go to Frame" option at the bottom of the screen, scroll through the frames looking to the clearest or sharpest frame I can find then hit set align points. I let the program select align points as I am not sure whether more or less points is better. I normally have limit setup set at 65% of best frames.
3. Hit the "Align" tab
4. I then hit "Limit" which adds little green lines to all the align points, the files I am having problems with seem to go nuts at this stage. Normally the green lines are quite short if it is a good stable video, but even good videos are showing massive long lines.
5. I then hit "Stack" and that's where I end up with a white screen and no data!

Any thoughts?

Malcolm

[sil (Steve)]

without seeing screenshots of a single frame and the result its a guessing game.

initial thought is its not aligning properly, maybe some frames had cloud cover throwing things off.

were you tracking? are you expecting movement of the disc in the video?

I would try using PIPP to dump the video to frames ordered by quality so you can look at the best/worst frames. you could also then retry registax with the best five frames (no need to use limit in R6 of course). if you are recording full disc use PIPP to center the sun and export best N frames to pics or AVI then run that in R6.

basically try reducing data to a couple of good frames to test your r6 process before expanding to more data.

[barx1963 (Malcolm)]

Thanks for the response Sil. Makes sense.
The thing is I have never had any issue with my old camera (DMK 41) this is a Point Grey Chameleon 3 and I am using Fire Capture to create the AVI. I tried Point Greys own softare but it seemed to be a bit dodgy. It may be that the Codec is the issue but I cannot find out what codec Fire Capture uses.
Anyway, in the meantime I will try your idea.
Just one question, what is PIPP?

Cheers

Malcolm

[sil (Steve)]

Google pipp. Post pics. I use fire capture as many do, very reliable, no codec issues.

[NeilW]

Hi Malcolm,

Did you resolve this in the end? I had exactly the same issue recently (albeit with a QHY5L-II). Reasonable data, lots of align points, very few stack points and a white image to finish.

Tried again with Registax 5 and had no problem at all. Tried Autostakkert as well, and that also gave me a reasonably good final image. It's a pity, because I quite like the Registax 6 interface.

Cheers,