Difference between revisions of "Vignetting"

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== Definition ==
 
== Definition ==
  
Light fall-off in the corners of images due to lens characteristics. There are mainly two types of vignetting. One caused by the lens housing sometimes called artificial vignetting and one caused by optical reasons (cosine-in-4th-power law) sometimes called natural vignetting. Only the last one can be easily corrected by panotools radial luminance filter.
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Light fall-off in the corners of images due to lens characteristics. There are mainly two types of vignetting. One caused by the lens housing sometimes called artificial vignetting and one caused by optical reasons (cosine-in-4th-power law) sometimes called natural vignetting. Only the last one can be easily corrected by the [[Panorama Tools Plugins]] radial luminance filter.  In principle [[Fulvio Senore]]'s [http://www.fsoft.it/Imaging/Vignetting.htm program for vignetting correction] can correct both types of vignetting.
  
 
== See also ==
 
== See also ==
  
[http://homepage.ntlworld.com/j.houghton/vignette.htm]
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[http://homepage.ntlworld.com/j.houghton/vignette.htm John Houghton's page on Vignetting]

Revision as of 14:27, 13 May 2005

Definition

Light fall-off in the corners of images due to lens characteristics. There are mainly two types of vignetting. One caused by the lens housing sometimes called artificial vignetting and one caused by optical reasons (cosine-in-4th-power law) sometimes called natural vignetting. Only the last one can be easily corrected by the Panorama Tools Plugins radial luminance filter. In principle Fulvio Senore's program for vignetting correction can correct both types of vignetting.

See also

John Houghton's page on Vignetting