Solar Mosaic tool/sequencer Output files Won't Stitch?

[chuck666]

Thank you for your accurate analysis............. LOL. Really, thank you.........

I like your new methodolgy........ I will pass that along to my mentor Larry. I/we will try it in the near future.

Have a good weekend, I will be down for house spraying as it is planned now. Things change. Feed back later........

Chuck

[chuck666]

Robin,
My backyard got back to normal a day early. Had to try the new routine. I have done NO analyzing on some apparent little things. I, also did NOT do my flats correctly. I had the histogram incorrect. I had it at 50% mid range NOT 90% right edge as DayStar suggests. I only realized this while I was updating my mentor, Larry on the successies of this mornings tests.

So, with a sampling of one test; conclusive, right? HAAAAAAAAAAA

Here it is,

Chuck
If you want me to post anything else from the run; let me know.
Thanks for your support..............

[admin]

Hi Chuck,

great image - I bet you are very pleased with it... Glad it all worked out today!

Hopefully you will now be able to get results like this fairly regularly - now you have worked out the right techniques to avoid drift problems etc.

I wouldn't worry much about the exact position of the flat histogram - as long as it is clear of the extremes at both ends (95% plus and below about 10%) then you should get good results. Using multiple frames when making the flats helps remove any extra noise that might otherwise appear from setting a lower peak at about 50%.

cheers,

Robin

[chuck666]

Thanks for your continuing support. I think for now; I am done posting on this thread unless something drastic changes. Looking forward to your update when you get caught up on drift alignment, etc. I also, think an update to the manual on these solar alignment findings is in order?
Again,
Thank You for YOUR support.
Chuck

[Altocumulus]

Sorry to hijack this thread - but after my attempts, yesterday with a 9 panel mosaic in Ca-K. 2 panels, specifically 2 O'clock and 8 O'clock won't stitch, but they're the least contrasty of the whole disc.

Question for Robin - When you programmed the Solar Mosaic tool, what state do you assume the image to be in - straight through, or flipped (i.e. with a diagonal)?
I noticed, yesterday, it needed one of the settings ticked (can't remember which) - when correct the tool would progress through alignment (Auto) - when incorrect it would search for the second point in space!

[admin]

Hi,

the alignment procedure for the mosaic works out whether the image is straight through or flipped by measuring the directions of movement of the image as the RA/Dec positions are changed, that then gets displayed in the results of the alignment procedure (in the case of Lunar alignment you can use a manual alignment where you have a 'flipped' check box to mirror the moon side-to-side and match that up with the view, but of course that isn't really workable for the sun).

The ordering of the panels in the mosaic is usually

* top row, left to right, followed by second row (left to right), followed by third row, etc.

However, just now and then, SharpCap will work out that it can take less panels by using an alternative ordering

* Left column, top to bottom, followed by second column (top to bottom), etc...

To be honest though I expect that the second option is very unlikely for the sun - it mostly comes into play with the moon when it is less than half full.

Out of interest, what stitching software have you tried?

cheers,

Robin

[Altocumulus]

Hi Robin,

Thanks for the response. I've seen the zigzag take place, one of last year's mosaics on the Sun.

I've tried MSICE and Affinity Photo 2 - they both end up with the same solution, though occasionally I get the 7 position to "catch". Although there's a clear disc edge, the missing sectors miss the contrasty activity of the remainder. I've tried to increase contrast, to help..

[admin]

I guess those are the tools I would have suggested trying, so I can't be of much help there. Perhaps you could try a bit-by-bit approach - stitch the 3 panels in each row for each of the three rows, then try stitching the rows together? The simpler problem of 3 panels might help.

cheers,

Robin