Contrast Blending - Revision history

Erik Krause: linkified

2008-01-21T09:18:41Z

linkified

Erik Krause: linked to enfuse

2008-01-06T23:27:12Z

linked to enfuse

Erik Krause: Prepared for new glossary template

2007-11-17T22:16:58Z

Prepared for new glossary template

Kpalsson: added a direct imagemagick snippet for the two image merge from luminous landscape

2007-08-23T03:00:03Z

added a direct imagemagick snippet for the two image merge from luminous landscape

Erik Krause: 1 revision(s)

2007-03-21T18:09:01Z

1 revision(s)

Alexbabanov: s/pfscalibration/PFScalibration/g

2007-03-21T18:07:00Z

s/pfscalibration/PFScalibration/g

Alexbabanov: s/pfscalibration/PFScalibration/g

2006-10-16T06:21:38Z

s/pfscalibration/PFScalibration/g

Bruno: linkified and rearranged a bit

2006-08-27T10:04:39Z

linkified and rearranged a bit

Bruno: linkified

2006-08-26T23:39:18Z

linkified

Zbooy: typo

2006-08-22T21:07:28Z

typo

@@ Line 3: / Line 3: @@
 There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [[FDRTools]] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].
-Currently the best results (even if compared with HDR tonemapping algorithms) are provided by [[enfuse]], an application that combines contrast blending with multi resolution spline blending (as known from [[enblend]]).
+Currently the best results (even if compared with HDR [[tone mapping]] algorithms) are provided by [[enfuse]], an application that combines contrast blending with multi resolution spline blending (as known from [[enblend]]).
 However, contrast blending can be done completely 'by hand' as described on Michael Reichmann's site - http://www.luminous-landscape.com/tutorials/digital-blending.shtml

← Older revision		Revision as of 23:27, 6 January 2008
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	There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [[FDRTools]] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions\|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].		There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [[FDRTools]] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions\|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].
		+
		+	Currently the best results (even if compared with HDR tonemapping algorithms) are provided by [[enfuse]], an application that combines contrast blending with multi resolution spline blending (as known from [[enblend]]).

	However, contrast blending can be done completely 'by hand' as described on Michael Reichmann's site - http://www.luminous-landscape.com/tutorials/digital-blending.shtml		However, contrast blending can be done completely 'by hand' as described on Michael Reichmann's site - http://www.luminous-landscape.com/tutorials/digital-blending.shtml

← Older revision		Revision as of 22:16, 17 November 2007
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−	~~We refer to '''contrast blending''' as a~~ technique to blend several ~~differently exposed (~~exposure [[Bracketing\|bracketed]]) images in order to achieve a higher [[Dynamic range]].	+	{{Glossary\|A technique to blend several exposure [[Bracketing\|bracketed]] images in one image\|1}} in order to achieve a higher [[Dynamic range]].

	There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [[FDRTools]] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions\|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].		There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [[FDRTools]] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions\|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].

@@ Line 31: / Line 31: @@
    ## Merge with background
    composite -compose Lighten _over_masked.tif _composite.tif merged.tif
 The other way to use [[bracketing|bracketed]] exposures is to assemble them into a single [[HDR]] image. This can be done with free [http://projects.ict.usc.edu/graphics/HDRShop/ HDRShop], new [[Photoshop]] CS2, [[cinepaint]] ([http://people.freenet.de/hsbosny/HDR_Tutorial/HDR_Tutorial-en.html tutorial for using cinepaint here]), [[PFScalibration]] or the [[FDRTools|FDRExposer]].

← Older revision		Revision as of 18:07, 21 March 2007
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	Mark Fink [http://www.northernlight.net www.northernlight.net]		Mark Fink [http://www.northernlight.net www.northernlight.net]
−	[[Category:Glossary~~]][[Category:Tutorial~~]][[Category:Tutorial:Specialised]]	+	[[Category:Glossary]][[Category:Tutorial:Specialised]]

@@ Line 32: / Line 32: @@
    composite -compose Lighten _over_masked.tif _composite.tif merged.tif
-The other way to use [[bracketing|bracketed]] exposures is to assemble them into a single [[HDR]] image. This can be done with free [http://projects.ict.usc.edu/graphics/HDRShop/ HDRShop], new [[Photoshop]] CS2, [[cinepaint]] ([http://people.freenet.de/hsbosny/HDR_Tutorial/HDR_Tutorial-en.html tutorial for using cinepaint here]), [[pfscalibration]] or the [[FDRTools|FDRExposer]].
+The other way to use [[bracketing|bracketed]] exposures is to assemble them into a single [[HDR]] image. This can be done with free [http://projects.ict.usc.edu/graphics/HDRShop/ HDRShop], new [[Photoshop]] CS2, [[cinepaint]] ([http://people.freenet.de/hsbosny/HDR_Tutorial/HDR_Tutorial-en.html tutorial for using cinepaint here]), [[PFScalibration]] or the [[FDRTools|FDRExposer]].
 The problem here is that the HDR image must be compressed with [[tone mapping]] to reveal the complete contrast range on a computer monitor.

@@ Line 32: / Line 32: @@
    composite -compose Lighten _over_masked.tif _composite.tif merged.tif
-The other way to use bracketed exposures is to assemble them into a single [[HDR]] image. This can be done with free [http://projects.ict.usc.edu/graphics/HDRShop/ HDRShop], new [[Photoshop]] CS2, [[cinepaint]] ([http://people.freenet.de/hsbosny/HDR_Tutorial/HDR_Tutorial-en.html tutorial for using cinepaint here]) or [http://www.mpi-inf.mpg.de/resources/hdr/calibration/pfs.html PFScalibration] and the [http://fdrtools.com/fdrexposer/fdrexposer_e.php FDRExposer]. The problem here is that the HDR image must be compressed to reveal the complete contrast range on a computer monitor.
+The other way to use [[bracketing|bracketed]] exposures is to assemble them into a single [[HDR]] image. This can be done with free [http://projects.ict.usc.edu/graphics/HDRShop/ HDRShop], new [[Photoshop]] CS2, [[cinepaint]] ([http://people.freenet.de/hsbosny/HDR_Tutorial/HDR_Tutorial-en.html tutorial for using cinepaint here]), [[pfscalibration]] or the [[FDRTools|FDRExposer]].
 This was a major problem for [[HDRShop]] since only [[gamma]] adjustment or (later) the Reinhard [[tone mapping]] plugin existed. It is still a problem for Photoshop CS2, but here the [[HDR]] images can be converted to a 16 or 8 bit per channel image with more possibilities. Brian Greenstone wrote a nice tutorial about that: [http://www.panomundo.com/panos/howto/workflow_expbracketing.html]
-Meanwhile two Photoshop CS2 plugins are available that deal with that problem: [[Photomatix]] and FDRCompressor. See [[HDR compression]] for details.
+Meanwhile two Photoshop CS2 plugins are available that deal with that problem: [[Photomatix]] and FDRCompressor. See [[HDR compression]] for a comparison.
-There are several tools that can handle HDR images: [[enblend]], [[Hugin]] and [[Nona]] can work with HDR images of different flavours. [[PTViewer]] 3.1 can display HDR images with adaptive [[dynamic range]] directly. For Linux there are several open source command line tools available that implement different [[tone mapping]] algorithms: [http://www.mpi-sb.mpg.de/resources/pfstools/]
+There are several panoramic tools that can handle HDR images: [[enblend]], [[hugin]] and [[nona]] can work with HDR images of different flavours. [[PTViewer]] 3.1 can display HDR images with adaptive [[dynamic range]] directly.
 Mark Fink [http://www.northernlight.net www.northernlight.net]
 [[Category:Glossary]][[Category:Tutorial]][[Category:Tutorial:Specialised]]

@@ Line 1: / Line 1: @@
 We refer to '''contrast blending''' as a technique to blend several differently exposed (exposure [[Bracketing|bracketed]]) images in order to achieve a higher [[Dynamic range]].
-There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [http://fdrtools.com/ FDRTools] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].
+There are several more or less automatic approaches realized in commercial programs or plugins like [[Photomatix]], [[FDRTools]] and Fred Miranda's [http://www.fredmiranda.com/DRI/ DRI], the free [[photoshop]] actions from [[Contrast Blending Actions|Erik Krause]], or [http://turtle.as.arizona.edu/jdsmith/exposure_blend.php exposure-blend], a script suite for the [[Gimp]].
 However, contrast blending can be done completely 'by hand' as described on Michael Reichmann's site - http://www.luminous-landscape.com/tutorials/digital-blending.shtml