Quote:
Originally Posted by RickS
What's your objection, Peter? You're perfectly entitled to be appalled. Just wondering why. Applying a stronger stretch and heavy noise reduction to the weaker components of a narrowband image is common practice. Otherwise the majority of Hubble palette images would be solid green.
Cheers,
Rick.
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I thought I was pretty clear on why...but no matter....to re-iterate, the extreme noise reduction and extreme stretch artificially blurs and extends all fine-structure (and real) details and replaces them with a fuzzy mess....in short you get colour in places where there is none and lose it in places where it should be prominent. The only real fix for lack of signal is more exposure.
Suffice to say, this is not the technique I used when I submitted
this H-alpha blended image to "The malins"