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Author Topic: BackGroundNeutralization appears to clip black point  (Read 2661 times)

Offline John A

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BackGroundNeutralization appears to clip black point
« on: 2013 April 15 14:39:52 »
Newbie here: new to astrophotography, new to PI.

I've watched Harry's tutorials and am grateful for these.

When I apply the BackGroundNeutralization tool it appears to clip my black point.  I believe this is undesirable.
Any comments on what I am doing wrong or am I misunderstanding the black point?
Thank you in advance for any help.
Screen captures attached.

John


« Last Edit: 2013 April 15 15:03:30 by John Hobbes »
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Offline pfile

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Re: BackGroundNeutralization appears to clip black point
« Reply #1 on: 2013 April 15 15:38:51 »
not sure i've ever noticed that before, one one thing is, you should set your HT resolution to 16-bit to really see the right histogram data...
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Offline John A

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Re: BackGroundNeutralization appears to clip black point
« Reply #2 on: 2013 April 15 15:58:26 »
Thank you for your reply, the resolution was the issue.
With HT set to 16 bit resolution the data no longer appears clipped.
John

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Offline pfile

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Re: BackGroundNeutralization appears to clip black point
« Reply #3 on: 2013 April 15 16:26:08 »
cool. not sure why 16-bit isn't just the default for PI. i'm not sure how useful the low resolution modes really are.

rob
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