Re: Extracting green channel from FITS
Posted by han.k on Mar 03, 2022; 10:30am
URL: http://astroimagej.170.s1.nabble.com/Extracting-green-channel-from-FITS-tp1750p1818.html
If you find keyword:
ROWORDER= 'BOTTOM-UP' / Order of the rows in image array
Then the image is flipped vertical. So
RG
GB
becomes
GB
RG
Similar with XBAYROFF and YBARYOFF, They are default zero. Just check if these values are odd or even and shift/flip if odd.
All to maintain the RGGB definition for a camera model. :(