Hello,
I just started using PixInsight, experimenting with the powerful image integration process. The data sets I use consist of floating format fits files that have been calibrated and aligned/resampled outside of PixInsight, but maintining the 16bit range of 0 to 65535.
I therefore proceeded to use Format Hints (lower-range 0 upper-range 65535) in the image integration settings. Worked just fine. Then I tried to use "clip low range" pixel rejection and noticed unexpected behavior, which then led me to try high range. Here, I discovered that all pixels get rejected, even if I set the value at the maximum allowed of 1.
This leads me to the suspicion that somehow the process interprets the range low/high settings within the range set by Format Hints (0 to 65525) and not within the rescaled 0 to 1 range. Not sure of course, but this is at least one explanation. Maybe I am doing something wrong.
I circumvented this problem by using the Batch Convert script to convert the files to th 0 to 1 range (changing the FITS preferences), and the range rejection worked just fine.
If I could get the Format Hint route to work, this would eliminate the conversion step and the associated hassle& risks (change preferences to 0-65535 and then change them back again to 0-1).
Thanks in advance for any help.
Robert
