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jbswindle
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Re: March 19 - Day TWO: Interfacing to and Processing Data From Image Sensors
jbswindle   3/19/2013 2:28:53 PM
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What about correction for optical, mechanical, and pixel vignetting effects?  In analog days this kind of shading error was corrected with scaled parabola signals added to the baseband video at horizontal and vertical rates.  Gradient shading errors were corrected with scaled saw tooth addition at horizontal and vertical rates.  What, if anything, is done in the digital domain to correct shading errors?

vignetting



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