Hi JD,
>> 2. Vignetting correction:
>> radial correction, radial vignetting correction by division:
>> I = I / (1 + b*r^2 + c*r^4 + d*r^6)
>> The parameters vary with both focal length and aperture.
>> Each focal length and aperture setting require 2 or 3 images for
>> calibration.
>
> Aren't there 2 other parameters, center of correction, for each of these
> (separately) as well? Or are these assumed to vary by camera?
Hmm, we still have to check that. I remember reading some papers where the
principal point (shift of the perspective center) changed with the camera
orientation. More experiments (measurements with multiple similar cameras)
are needed to decide if including these parameters makes sense.
ciao
Pablo
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group.
A list of frequently asked questions is available at:
http://wiki.panotools.org/Hugin_FAQTo post to this group, send email to
hugin-ptx@...
To unsubscribe from this group, send email to
hugin-ptx-unsubscribe@...
For more options, visit this group at
http://groups.google.com/group/hugin-ptx-~----------~----~----~----~------~----~------~--~---
