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Fred's M33 Data through PixInsight
Some very challenging gradients in both the RGB and L channels, but PI handled them pretty well. The galaxy data itself is excellent and there was plenty of room for artistic choice around the core and the arms.
Comment
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Comment by Josh Lake on January 27, 2013 at 1:19pm
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Fred, we talked through the cropping issue, so you're good, right?
Trevor, Fred sent me the 4 masters, L, R, G, B. PixInsight's Batch Preprocessing can take the images right from the camera, however, and it will calibrate, align, and stack. I could take level at any part of the process, but the earlier the data is in the processing, the more I can do with PI. The masters are probably the easiest to transfer, though -- just 4 files (or even 1 RGB master).
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Comment by Trevor Woodrow on January 27, 2013 at 11:09am
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Wow this is a beautiful M33.....Josh, listening, or actually reading you too go back and forth about this program has got me thinking about the program. Is he giving you the raw, and if not at what point in the processing are you stepping in?
I see images like this and wonder is my stuff crap because I am at the limit of my set up, or am I botching it on the back end with the processing. If the diff between Freds data and your work here is a new CCD I am FUBAR for now, but if it is software and technique, then I would love to learn. Could I send you something to look at?
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Here are the steps: http://imgur.com/a/h6E5G
I did an ABE first to take care of the big general gradients. Then I did a DBE with points. I could have selected those better, but it helped.
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