Quote:
Originally Posted by Startrek
Ah understand your comment now
There are numerous modules beyond the main gradient wipe in Startools which reduce or eliminate noise, glare , brightness and other annoying anomalies in your data but it will not affect the dynamic range and detail of your image. It can focus on your interstellar background Star field by averaging out or masking out the unwanted pixels between stars and giving your main object a dynamic boost without sacrificing detail
Modules like Contrast , HDR and Super Structure have this feature
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I don't know your processing flow.
The processing flow I always used was different:
Stretching in NASA FITS Liberator -
saving as a tiff then processing in Photoshop
and sometimes with Fitswork4 as well.
In Photoshop you can go to curves,
control M -
and just click the mouse on a dark area and see the value you
get out of 256.
For one of your posted images it was only 1.
I find most images on this forum are around value 22 in the dark areas.
In fact it's very handy for any picture -
even daytime terrestrial pictures.
You can click on a bright area too and see that it's
2 to the power of 8 =256
in other words - over exposed - all intensity information is gone.
cheers
Allan