Dear List,

I am looking to find a method for correcting vignetting occurring in HDR
images using radiance as part of an undergraduate research study. I am
using a Uniform Luminance Sphere to create a uniformly lit background in
order to create a reference image.

I have used radiance to create the HDR images, and I am wondering if there
is a way to take the HDR image and divide each pixel intensity by that of
its optical center. This would create an image/mask of fractional pixel
values that can be divided into another image to correct for the cameras
specific vignetting.

Other suggestions would be greatly appreciated as well.

Thanks,
Josh

-- 
*Joshua Wilson*

4th year Architectural Engineering Student (Lighting/Electrical)
Durham School of Architectural Engineering and Construction
UNL College of Engineering (Omaha Campus)
[email protected]
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