seeker372011
19-08-2005, 07:09 PM
this is really weird. I am currently experiencing a problem I have not encountered before, and wonder if any one else has encountered or if there is something wrong with what I may be doing.
I have three 10 minutes subs and the individual RAW images when opened in photoshop shows plenty(well, reasonable) red signal
when I pre-processed, registered and stacked the frames in IRIS and took it to photoshop, I found I had less (!) red than in the individual subs. More overall detail as you would expect, much less red
I tried kappa sigma stacking with same result
I then took an individual frame-did not subtract a dark frame or divide with a flat field-converted to a CFA file in IRIS and then exported it to photoshop-and sure enough I had lost red signal.!??
can any one suggest what I may be doing wrong?
BTW is anyone aware of an IRIS yahoo group or something similar?
thanks in advance for any suggestions
I have three 10 minutes subs and the individual RAW images when opened in photoshop shows plenty(well, reasonable) red signal
when I pre-processed, registered and stacked the frames in IRIS and took it to photoshop, I found I had less (!) red than in the individual subs. More overall detail as you would expect, much less red
I tried kappa sigma stacking with same result
I then took an individual frame-did not subtract a dark frame or divide with a flat field-converted to a CFA file in IRIS and then exported it to photoshop-and sure enough I had lost red signal.!??
can any one suggest what I may be doing wrong?
BTW is anyone aware of an IRIS yahoo group or something similar?
thanks in advance for any suggestions