Vignetting - Revision history

Erik Krause: /* See also */ wikipedia

2011-01-03T22:11:52Z

‎See also: wikipedia

2010-02-12T10:46:26Z

‎See also: John Houghton moved to his own domain

2008-09-21T21:56:07Z

‎Definition: typo

2008-09-21T21:55:31Z

‎Definition: mentioned PTGui

2008-05-04T14:49:30Z

‎See also: typo

2008-05-04T14:49:09Z

‎See also: added pablo's paper

2007-11-18T19:39:02Z

Prepared for new glossary template

2006-07-13T20:26:09Z

6 revision(s)

2006-07-13T19:55:22Z

1 revision(s)

2006-04-20T15:20:13Z

Hugin can automatically correct vignetting

← Older revision		Revision as of 22:11, 3 January 2011
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	== See also ==		== See also ==
		+
		+	[[w:Vignetting\|Wikipedia page on vignetting]]

	[http://johnhpanos.com/vignette.htm John Houghton's page on Vignetting]		[http://johnhpanos.com/vignette.htm John Houghton's page on Vignetting]

@@ Line 11: / Line 11: @@
 == See also ==
-[http://homepage.ntlworld.com/j.houghton/vignette.htm John Houghton's page on Vignetting]
+[http://johnhpanos.com/vignette.htm John Houghton's page on Vignetting]
 [[Category:Glossary]]
 [http://biecoll.ub.uni-bielefeld.de/volltexte/2007/101/ Pablo d'Angelo's paper on exposure, whitebalance and vignetting correction]

@@ Line 7: / Line 7: @@
 [[nona]], the stitcher supplied with [[hugin]] now implements vignetting correction at the stitching stage, this uses either a flatfield image or a polynomial function.  [[fulla]] is an image pre-processor that uses the same technique to correct vignetting along with [[chromatic aberration]] and [[lens distortion]].
-[[hugin]] now has a feature for automatically deriving vignetting correction parameters from an assembled panorama.  It compares the brightness gradient difference between overlapping photos at different radii, and [http://article.gmane.org/gmane.comp.misc.ptx/4690 calculates a suitable correction polynomial]. [[PTGui]] has implemented same technique based on Pablo's paper.
+[[hugin]] now has a feature for automatically deriving vignetting correction parameters from an assembled panorama.  It compares the brightness gradient difference between overlapping photos at different radii, and [http://article.gmane.org/gmane.comp.misc.ptx/4690 calculates a suitable correction polynomial]. [[PTGui]] has implemented the same technique based on Pablo's paper.
 == See also ==

@@ Line 7: / Line 7: @@
 [[nona]], the stitcher supplied with [[hugin]] now implements vignetting correction at the stitching stage, this uses either a flatfield image or a polynomial function.  [[fulla]] is an image pre-processor that uses the same technique to correct vignetting along with [[chromatic aberration]] and [[lens distortion]].
-[[hugin]] now has a feature for automatically deriving vignetting correction parameters from an assembled panorama.  It compares the brightness gradient difference between overlapping photos at different radii, and [http://article.gmane.org/gmane.comp.misc.ptx/4690 calculates a suitable correction polynomial].
+[[hugin]] now has a feature for automatically deriving vignetting correction parameters from an assembled panorama.  It compares the brightness gradient difference between overlapping photos at different radii, and [http://article.gmane.org/gmane.comp.misc.ptx/4690 calculates a suitable correction polynomial]. [[PTGui]] has implemented same technique based on Pablo's paper.
 == See also ==

← Older revision		Revision as of 14:49, 4 May 2008
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	[[Category:Glossary]]		[[Category:Glossary]]

−	[http://biecoll.ub.uni-bielefeld.de/volltexte/2007/101/ Pablo d'Angelo's paper on exposure, whitebalance and vignetting ~~cotrection~~]	+	[http://biecoll.ub.uni-bielefeld.de/volltexte/2007/101/ Pablo d'Angelo's paper on exposure, whitebalance and vignetting correction]

← Older revision		Revision as of 14:49, 4 May 2008
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	[http://homepage.ntlworld.com/j.houghton/vignette.htm John Houghton's page on Vignetting]		[http://homepage.ntlworld.com/j.houghton/vignette.htm John Houghton's page on Vignetting]
	[[Category:Glossary]]		[[Category:Glossary]]
		+
		+	[http://biecoll.ub.uni-bielefeld.de/volltexte/2007/101/ Pablo d'Angelo's paper on exposure, whitebalance and vignetting cotrection]

@@ Line 1: / Line 1: @@
 == 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 [http://www.fsoft.it/Imaging/Vignetting.htm program for vignetting correction] can correct both types of vignetting.
+{{Glossary|Light fall-off in the corners of images|1}} 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.
 Although the [[Panorama Tools Plugins]] radial luminance filter implements vignetting correction, this functionality was never added to [[PTStitcher]].  In this case it is necessary to pre-process photographs with the plugin or some other tool.

← Older revision	Revision as of 20:26, 13 July 2006
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