Re: Just a question, not so much a commentchriscoxadobeJuly 1 2007, 17:55:10 UTC
BTW - bright field correction or white field correction/calibration are pretty common in astronomy and microscopy.
Yes, division is the normal method of doing the correction - but you really need floating point numbers to handle that because many of your values will end up greater than 1.0.
Dark Field Correction/Subtraction is also common - but mostly for low light situations (LONG exposures).
In both corrections, the data needs to be applied to the linear (gamma 1.0) data before it gets processed in any other way.
Re: Just a question, not so much a commentkevin_nordineJuly 1 2007, 18:04:56 UTC
Hi Chris. Thanks for responding. This ends up being a custom "math filter" in AE, right? I may have someone to do this... I'll pass your comments along Thanks again, Kevin.
Re: Just a question, not so much a commentkevin_nordineJuly 1 2007, 20:47:12 UTC
Hi Chris. Thanks for your timely response. I think I have someone who can do this for me as an AE plug-in... I'll pass it along for them to read. Thanks again, Kevin.
Reply
No, I really don't have much time outside of work.
I'm having enough trouble maintaining a life outside of work...
Reply
Yes, division is the normal method of doing the correction - but you really need floating point numbers to handle that because many of your values will end up greater than 1.0.
Dark Field Correction/Subtraction is also common - but mostly for low light situations (LONG exposures).
In both corrections, the data needs to be applied to the linear (gamma 1.0) data before it gets processed in any other way.
Reply
Thanks for responding.
This ends up being a custom "math filter" in AE, right?
I may have someone to do this...
I'll pass your comments along
Thanks again,
Kevin.
Reply
Thanks for your timely response.
I think I have someone who can do this for me as an AE plug-in...
I'll pass it along for them to read.
Thanks again,
Kevin.
Reply
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