Re: Extracting green channel from FITS
Posted by
han.k on
Mar 03, 2022; 8:25pm
URL: http://astroimagej.170.s1.nabble.com/Extracting-green-channel-from-FITS-tp1750p1825.html
Looking in my collection of FITS files downloaded from nova.astrometry.net (few hunderd files), I found only two files with an XBAYROFF=1 There where many more with XBAYROFF=0. These two where created by SharpCap.
The brightest star in the file linked should be pretty red. Strange enough Pixinsight, Siril make the sky purple. ASTAP and CCDCiel make a greenish sky. So here there is difference interpretation.
Since it is rare XBAYROFF=1 or odd, you could consider to skip reading XBAYROFF, YBAYROFF. This makes it much more simple. Keyword ROWORDER is now much more used.
Here is one file:
https://ufile.io/xbxzipg9Han