HDR - Revision history

Erik Krause: linkified

2012-10-02T21:04:35Z

linkified

Erik Krause: pfstmo->pfstools

2008-05-04T15:25:10Z

pfstmo->pfstools

Erik Krause: interwiki linked

2007-11-20T16:36:33Z

interwiki linked

Erik Krause: Prepared for new glossary template

2007-11-17T23:18:36Z

Prepared for new glossary template

Erik Krause: corrected internal link

2007-03-21T16:53:05Z

corrected internal link

Bvogl at 11:37, 25 November 2006

2006-11-25T11:37:54Z

Bruno: note that hugin and enblend can stitch HDR data

2006-10-16T16:03:38Z

note that hugin and enblend can stitch HDR data

Bruno: linkified

2006-08-26T23:39:10Z

linkified

Bruno: pfstmo

2006-08-26T23:20:59Z

pfstmo

Bruno: linkified

2006-08-18T16:05:18Z

linkified

@@ Line 22: / Line 22: @@
 Some more info on HDR is found on wikipedia: [[w:High dynamic range imaging]] and the [http://www.hdrsoft.com/resources/dri.html HDR Image FAQ].
-Also, see the [[HDR Software overview]]
+Also, see the [[HDR Software overview]], [[Batch merge handheld images]] and [[enfuse]]
 [[Category:Glossary]]

@@ Line 5: / Line 5: @@
 * <b>Camera</b> limitation: Standard digital cameras can capture at most a [[dynamic range]] of 1,000:1, which is much less than the dynamic range of most outdoor scenes. This limitation is usually addressed by taking several exposures of the same scene (this is the purpose of the "Automatic Exposure [[Bracketing]]" function available in many digicams).
-* <b>Display</b> limitation: Standard monitors have a rather low dynamic range, around 100:1, which is not even enough to display correctly the [[RAW]] data captured by a standard camera. This limitation is addressed by [[tone mapping]] or by techniques that directly blend exposures. Exposure Blending can be done either manually in Photoshop, semi-manually with Photoshop actions (see [[Contrast Blending]] and Jook Leung's [http://360vr.com/HDRforDummies HDR for Dummy]) or automatically in specialized software (see [[Photomatix]], [[FDRTools]] or [[pfstmo]] - comparison on [[HDR compression]]).
+* <b>Display</b> limitation: Standard monitors have a rather low dynamic range, around 100:1, which is not even enough to display correctly the [[RAW]] data captured by a standard camera. This limitation is addressed by [[tone mapping]] or by techniques that directly blend exposures. Exposure Blending can be done either manually in Photoshop, semi-manually with Photoshop actions (see [[Contrast Blending]] and Jook Leung's [http://360vr.com/HDRforDummies HDR for Dummy]) or automatically in specialized software (see [[Photomatix]], [[FDRTools]] or [[pfstools]] - comparison on [[HDR compression]]).
 Both camera and display limitations can be overcome with specialised equipment like the [http://spheron.com/spheron/public/en/hdri_spherocamhdr/hdri_spherocamhdr.php SpheroCam HDR] camera and [http://www.brightsidetech.com/ Brightside HDR Display]. However, such equipment remains very expensive for the time being.

@@ Line 20: / Line 20: @@
 blending floating point TIFF HDR data, but not RGBE data yet.
-Some more info on HDR is found on wikipedia: [http://en.wikipedia.org/wiki/High_dynamic_range_imaging] and the [http://www.hdrsoft.com/resources/dri.html HDR Image FAQ].
+Some more info on HDR is found on wikipedia: [[w:High dynamic range imaging]] and the [http://www.hdrsoft.com/resources/dri.html HDR Image FAQ].
 Also, see the [[HDR Software overview]]
 [[Category:Glossary]]

← Older revision		Revision as of 23:18, 17 November 2007
Line 1:		Line 1:
−	HDR means ~~High~~ Dynamic Range. The term is used to refer to techniques and images that are capable of capturing and reproducing scenes with a high [[dynamic range]].	+	HDR means {{Glossary\|high [[dynamic range\|Dynamic Range]].\|1}} The term is used to refer to techniques and images that are capable of capturing and reproducing scenes with a high [[dynamic range]].

	HDR is used more or less accurately for almost any way to get more details out of the shadows and/or highlights. To understand how so-called "HDR techniques" work, it is important to differentiate between the two limitations that affects dynamic range in photography and imaging. The first limitation comes from the capture, i.e. the camera. The second limitation from the display, i.e. monitor or printer.		HDR is used more or less accurately for almost any way to get more details out of the shadows and/or highlights. To understand how so-called "HDR techniques" work, it is important to differentiate between the two limitations that affects dynamic range in photography and imaging. The first limitation comes from the capture, i.e. the camera. The second limitation from the display, i.e. monitor or printer.

@@ Line 5: / Line 5: @@
 * <b>Camera</b> limitation: Standard digital cameras can capture at most a [[dynamic range]] of 1,000:1, which is much less than the dynamic range of most outdoor scenes. This limitation is usually addressed by taking several exposures of the same scene (this is the purpose of the "Automatic Exposure [[Bracketing]]" function available in many digicams).
-* <b>Display</b> limitation: Standard monitors have a rather low dynamic range, around 100:1, which is not even enough to display correctly the [[RAW]] data captured by a standard camera. This limitation is addressed by [[tone mapping]] or by techniques that directly blend exposures. Exposure Blending can be done either manually in Photoshop, semi-manually with Photoshop actions (see [[Contrast Blending]] and Jook Leung's [http://360vr.com/HDRforDummies HDR for Dummy]) or automatically in specialized software (see [[Photomatix]], [[FDRtools]] or [[pfstmo]] - comparison on [[HDR compression]]).
+* <b>Display</b> limitation: Standard monitors have a rather low dynamic range, around 100:1, which is not even enough to display correctly the [[RAW]] data captured by a standard camera. This limitation is addressed by [[tone mapping]] or by techniques that directly blend exposures. Exposure Blending can be done either manually in Photoshop, semi-manually with Photoshop actions (see [[Contrast Blending]] and Jook Leung's [http://360vr.com/HDRforDummies HDR for Dummy]) or automatically in specialized software (see [[Photomatix]], [[FDRTools]] or [[pfstmo]] - comparison on [[HDR compression]]).
 Both camera and display limitations can be overcome with specialised equipment like the [http://spheron.com/spheron/public/en/hdri_spherocamhdr/hdri_spherocamhdr.php SpheroCam HDR] camera and [http://www.brightsidetech.com/ Brightside HDR Display]. However, such equipment remains very expensive for the time being.

← Older revision		Revision as of 11:37, 25 November 2006
Line 21:		Line 21:

	Some more info on HDR is found on wikipedia: [http://en.wikipedia.org/wiki/High_dynamic_range_imaging] and the [http://www.hdrsoft.com/resources/dri.html HDR Image FAQ].		Some more info on HDR is found on wikipedia: [http://en.wikipedia.org/wiki/High_dynamic_range_imaging] and the [http://www.hdrsoft.com/resources/dri.html HDR Image FAQ].
		+
		+	Also, see the [[HDR Software overview]]

	[[Category:Glossary]]		[[Category:Glossary]]

@@ Line 15: / Line 15: @@
 * .float Raw binary floating point
 * .exr OpenEXR [[EXR]] format
 Some more info on HDR is found on wikipedia: [http://en.wikipedia.org/wiki/High_dynamic_range_imaging] and the [http://www.hdrsoft.com/resources/dri.html HDR Image FAQ].
 [[Category:Glossary]]

@@ Line 3: / Line 3: @@
 HDR is used more or less accurately for almost any way to get more details out of the shadows and/or highlights. To understand how so-called "HDR techniques" work, it is important to differentiate between the two limitations that affects dynamic range in photography and imaging. The first limitation comes from the capture, i.e. the camera. The second limitation from the display, i.e. monitor or printer.
-* <b>Camera</b> limitation: Standard digital cameras can capture at most a [[dynamic range]] of 1,000:1, which is much less than the dynamic range of most outdoor scenes. This limitation is usually addressed by taking several exposures of the same scene (this is the purpose of the "Automatic Exposure Bracketing" function available in many digicams).
+* <b>Camera</b> limitation: Standard digital cameras can capture at most a [[dynamic range]] of 1,000:1, which is much less than the dynamic range of most outdoor scenes. This limitation is usually addressed by taking several exposures of the same scene (this is the purpose of the "Automatic Exposure [[Bracketing]]" function available in many digicams).
 * <b>Display</b> limitation: Standard monitors have a rather low dynamic range, around 100:1, which is not even enough to display correctly the [[RAW]] data captured by a standard camera. This limitation is addressed by [[tone mapping]] or by techniques that directly blend exposures. Exposure Blending can be done either manually in Photoshop, semi-manually with Photoshop actions (see [[Contrast Blending]] and Jook Leung's [http://360vr.com/HDRforDummies HDR for Dummy]) or automatically in specialized software (see [[Photomatix]] or [http://fdrtools.com/ FDRtools] - comparison on [[HDR compression]]).