Quote:
Originally Posted by middy
Thanks for taking the time to provide all this really useful information. I have a target (TOI 2414.01) picked for tonight, so I'll be giving it a go.
I watched the video you linked. What is not clear from that is what format the light frames are in at the start. They don't seem to be raw images and look to have already been debayered before applying the calibration files. This is the opposite of convention, where you would calibrate first and then debayer the calibrated light frame.
Unless he has first done a green channel extraction on everything (lights, darks, flats etc.). I tried to work it out from his light filename but it doesn't give any clues as far as I can tell.
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The video assumes you're using mono images and never talks about processing colour subs. However, I only have a colour camera so I had to find a process to debayer and extract luminance after the calibration process.
This is what I finally ended up doing
1. Followed the calibration process in AIJ using my bayered subs.
2. Use pixinsight to debayer all the AIJ calibrated images.
3. Use pixinsight script->Batch Processing->Batch Channel Extraction Script.
select your files and in the Channels tab select "CIE Lab --> L" and
execute.
4. Use pixinsight script->Batch Processing->Batch Format Conversion.
to change the L subs you just created from .xisf back to .fits
5. Use ASTAP to batch platesolve again.
After all that you can continue in AIJ using the luminance files created, just as in Patriot Astros video.
Also I think you can save in step 3 as FITS and step 4 is not needed, maybe give that a try.
Chris