Colour Stack, one channel individuals
Posted: Mon Jul 22, 2019 10:25 pm
Greetings,
I'm a relatively new user of Sharpcap... I took a set of 50 images with a brand new ZWO ASI294MC Pro camera on Friday night. They were live stacked in Sharpcap, and the result appeared quite good. I had selected "Save Individual Frames". Output format is FITS.
https://www.astrobin.com/416285/
In close inspection I see that there is a faint airplane or satellite track in the stacked image. Scanning the individual frames I can see the one image that causes the problem. I'm viewing them in FITS Liberator 3. I would like to stack again, discarding this bad frame.
Here's the problem: In FITS Liberator the stacked image has three image "planes" or colours. The individual frames, however, have only one image plane each. The file sizes match: The individuals frames are roughly one-third of the size. I seem to have saved only one "plane" of the individual frames, so cannot re-stack the images.
This particular imaging session is not the biggest concern... how do I avoid this problem in the future? Am I ONLY able to live-stack with SharpCap, with no option to re-stack later???
I'm a relatively new user of Sharpcap... I took a set of 50 images with a brand new ZWO ASI294MC Pro camera on Friday night. They were live stacked in Sharpcap, and the result appeared quite good. I had selected "Save Individual Frames". Output format is FITS.
https://www.astrobin.com/416285/
In close inspection I see that there is a faint airplane or satellite track in the stacked image. Scanning the individual frames I can see the one image that causes the problem. I'm viewing them in FITS Liberator 3. I would like to stack again, discarding this bad frame.
Here's the problem: In FITS Liberator the stacked image has three image "planes" or colours. The individual frames, however, have only one image plane each. The file sizes match: The individuals frames are roughly one-third of the size. I seem to have saved only one "plane" of the individual frames, so cannot re-stack the images.
This particular imaging session is not the biggest concern... how do I avoid this problem in the future? Am I ONLY able to live-stack with SharpCap, with no option to re-stack later???