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Old 13-11-2021, 06:10 AM
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alpal
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Quote:
Originally Posted by Andy01 View Post
Well done - ticks all the boxes!

But... blacks are clipped and the detail within is lost.
A more subtle hand is needed.

Everything else is 1st class, well done!

Hi Andy,

It is a great image.
I don't agree that the blacks are clipped but they are far too low.
In Photoshop they were measuring only about 12 out of 256.
It would have been better to stretch the image in NASA FITS Liberator
before doing the processing.
( I think PixInsight will do that too? )
The stretch function called x^(1/5) would have given
a great compression factor to even out the large dynamic range.


cheers
Allan
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