QuickBird - Revision history

Neteler: GRASS GIS 7 version is the official stable version and hence the default in this Wiki

2016-08-15T21:19:43Z

GRASS GIS 7 version is the official stable version and hence the default in this Wiki

← Older revision		Revision as of 21:19, 15 August 2016
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.colors.enhance~~\|version=70~~}}		* {{cmd\|i.colors.enhance}}
	* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}		* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}
	* {{cmd\|i.pansharpen~~\|version=70~~}} ~~(GRASS 7.x)~~		* {{cmd\|i.pansharpen}}
	* [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar]		* [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar]
	* {{cmd\|i.vi~~\|version=70~~}} ~~(GRASS 7.x)~~		* {{cmd\|i.vi}}
	* {{cmd\|i.segment~~\|version=70~~}} ~~(GRASS 7.x)~~		* {{cmd\|i.segment}}

	== Pre-Processing ==		== Pre-Processing ==
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	{{cmd\|r.mapcalc}} <source lang="bash" enclose=none>"Blue_Reflectance = ( ${PI} * Blue_Radiance * ${ESD}^2 ) / ( ${BAND_Esun} * cos(${SZA}) )"</source>		{{cmd\|r.mapcalc}} <source lang="bash" enclose=none>"Blue_Reflectance = ( ${PI} * Blue_Radiance * ${ESD}^2 ) / ( ${BAND_Esun} * cos(${SZA}) )"</source>

	==== ~~Automatising~~ Conversions ====		==== Automating Conversions ====

	Scripting the conversion process avoids repeating the same steps for each band separately.		Scripting the conversion process avoids repeating the same steps for each band separately.

⚠️NikosA: added i.quickbird.toar

2016-08-14T08:19:48Z

added i.quickbird.toar

← Older revision		Revision as of 08:19, 14 August 2016
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	* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}		* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}
	* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)		* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)
			* [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar]
	* {{cmd\|i.vi\|version=70}} (GRASS 7.x)		* {{cmd\|i.vi\|version=70}} (GRASS 7.x)
	* {{cmd\|i.segment\|version=70}} (GRASS 7.x)		* {{cmd\|i.segment\|version=70}} (GRASS 7.x)

⚠️NikosA: updated list of grass related modules

2016-08-14T08:17:17Z

updated list of grass related modules

← Older revision		Revision as of 08:17, 14 August 2016
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.~~landsat~~.~~rgb~~}} ~~(GRASS 6.x) \|~~ {{~~cmd~~\|i.~~colors~~.~~enhance~~\|version=70}} ~~(GRASS 7.x)~~		* {{cmd\|i.colors.enhance\|version=70}}
	* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)		* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}
			* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)
	* {{cmd\|i.vi\|version=70}} (GRASS 7.x)		* {{cmd\|i.vi\|version=70}} (GRASS 7.x)
	* {{cmd\|i.segment\|version=70}} (GRASS 7.x)		* {{cmd\|i.segment\|version=70}} (GRASS 7.x)
	* and more

	== Pre-Processing ==		== Pre-Processing ==

⚠️NikosA: updated link to i.fusion.hpf

2016-08-14T08:10:09Z

updated link to i.fusion.hpf

← Older revision		Revision as of 08:10, 14 August 2016
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	=== HPFA based sharpening ===		=== HPFA based sharpening ===

	The following screenshots exemplify the High Pass Filtering Addition fusion technique applied in a fragment of the QuickBird acquisition "04APR05050541-X2AS_R1C1-000000186011_01_P001-Sri_Lanka-Kokilai_Lagoon" which is publicly available via the GLCF. ~~Currently, an unofficial~~ implementation of this technique for GRASS-GIS is available as a ~~custom~~ grass-addon ~~called [https://github.com/NikosAlexandris/~~i.fusion.hpf.~~py i.fusion.hpf]~~		The following screenshots exemplify the High Pass Filtering Addition fusion technique applied in a fragment of the QuickBird acquisition "04APR05050541-X2AS_R1C1-000000186011_01_P001-Sri_Lanka-Kokilai_Lagoon" which is publicly available via the GLCF. An implementation of this technique for GRASS-GIS is available as a grass-addon {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}.

Neteler: fix G7 urls

2014-11-20T19:59:32Z

fix G7 urls

← Older revision		Revision as of 19:59, 20 November 2014
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.landsat.rgb}} (GRASS 6.x) \| {{cmd\|i.colors.enhance}} (GRASS 7.x)		* {{cmd\|i.landsat.rgb}} (GRASS 6.x) \| {{cmd\|i.colors.enhance\|version=70}} (GRASS 7.x)
	* {{cmd\|i.pansharpen}}		* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)
	* {{cmd\|i.vi}}		* {{cmd\|i.vi\|version=70}} (GRASS 7.x)
	* {{cmd\|i.segment}}		* {{cmd\|i.segment\|version=70}} (GRASS 7.x)
	* and more		* and more

⚠️NikosA: /* Cleanup */ Red and Blue might be swapped (older data)

2014-11-17T20:28:08Z

Cleanup: Red and Blue might be swapped (older data)

← Older revision		Revision as of 20:28, 17 November 2014
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	{{cmd\|g.rename}} QBird_Multichrom.4,QBird_Multichrom.NIR		{{cmd\|g.rename}} QBird_Multichrom.4,QBird_Multichrom.NIR

	Red and ~~blue~~ bands are swapped, so fix that by renaming them. (see [http://osdir.com/ml/gis.gdal.devel/2004-03/msg00025.html])		It is very likely that the Red and Blue bands are swapped (in older datasets), so fix that by renaming them. (see [http://osdir.com/ml/gis.gdal.devel/2004-03/msg00025.html])
	g.rename QBird_Multichrom.blue,QBird_Multichrom.realred		g.rename QBird_Multichrom.blue,QBird_Multichrom.realred
	g.rename QBird_Multichrom.red,QBird_Multichrom.blue		g.rename QBird_Multichrom.red,QBird_Multichrom.blue
Line 186:		Line 186:
	i.landsat.rgb r=QBird_Multichrom.red g=QBird_Multichrom.green b=QBird_Multichrom.blue		i.landsat.rgb r=QBird_Multichrom.red g=QBird_Multichrom.green b=QBird_Multichrom.blue
	d.redraw		d.redraw



	=== Deriving Physical Quantities ===		=== Deriving Physical Quantities ===

⚠️NikosA: /* Inside GRASS GIS */ i.landsat.rgb for G6, i.colors.enhance for G7

2014-11-17T20:26:03Z

Inside GRASS GIS: i.landsat.rgb for G6, i.colors.enhance for G7

← Older revision		Revision as of 20:26, 17 November 2014
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.landsat.rgb}}		* {{cmd\|i.landsat.rgb}} (GRASS 6.x) \| {{cmd\|i.colors.enhance}} (GRASS 7.x)
	* {{cmd\|i.pansharpen}}		* {{cmd\|i.pansharpen}}
	* {{cmd\|i.vi}}		* {{cmd\|i.vi}}
	* {{cmd\|i.segment}}		* {{cmd\|i.segment}}
	* ~~...~~		* and more


	== Pre-Processing ==		== Pre-Processing ==

⚠️NikosA: /* Deriving Physical Quantities */ Added reference to source for band parameters

2014-11-17T20:23:52Z

Deriving Physical Quantities: Added reference to source for band parameters

← Older revision		Revision as of 20:23, 17 November 2014
Line 192:		Line 192:
	=== Deriving Physical Quantities ===		=== Deriving Physical Quantities ===

	Converting Digital Numbers to Radiance/Reflectance requires knowledge about the sensor's specific spectral band parameters. These are, as extracted from the document ..~~.''ToAdd~~'':		Converting Digital Numbers to Radiance/Reflectance requires knowledge about the sensor's specific spectral band parameters. These are, as extracted from the document ''Radiometric Use of QuickBird Imagery, Technical Note. 2005-11-07, by Keith Krause.''

	<source lang=bash>		<source lang=bash>

⚠️NikosA: /* Automatising Conversions */ Added link to https://github.com/NikosAlexandris/i.quickbird.toar

2014-11-17T20:19:39Z

Automatising Conversions: Added link to https://github.com/NikosAlexandris/i.quickbird.toar

← Older revision		Revision as of 20:19, 17 November 2014
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	==== Automatising Conversions ====		==== Automatising Conversions ====

	Scripting the conversion process avoids repeating the same steps for each band separately. '''Note,''' however~~, in the following example~~, constants, band parameters and acquisition related metadata are hard-coded! Reviewing the code and altering appropriately is required, i.e. checking for the parameters <code>ESD</code>, <code>SEA</code>, <code>PanTDI</code>, <code>K_BAND</code>.		Scripting the conversion process avoids repeating the same steps for each band separately.

			===== in Python =====

			A custom python script, performing the operations of interest, might be like [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar (for GRASS 7.x)]

			===== in bash =====

			Am example bash shell script, might look like the one that follows. '''Note,''' however, constants, band parameters and acquisition related metadata are hard-coded! Reviewing the code and altering appropriately is required, i.e. checking for the parameters <code>ESD</code>, <code>SEA</code>, <code>PanTDI</code>, <code>K_BAND</code>.

	<source lang="bash">		<source lang="bash">

⚠️NikosA: /* HPFA based sharpening */ Link to external custom add-on implementing the HPFA image fusion technique (temporary)

2014-11-16T10:19:10Z

HPFA based sharpening: Link to external custom add-on implementing the HPFA image fusion technique (temporary)

← Older revision		Revision as of 10:19, 16 November 2014
Line 420:		Line 420:
	=== HPFA based sharpening ===		=== HPFA based sharpening ===

	The following screenshots exemplify the High Pass Filtering Addition fusion technique applied in a fragment of the QuickBird acquisition "04APR05050541-X2AS_R1C1-000000186011_01_P001-Sri_Lanka-Kokilai_Lagoon" which is publicly available via the GLCF.		The following screenshots exemplify the High Pass Filtering Addition fusion technique applied in a fragment of the QuickBird acquisition "04APR05050541-X2AS_R1C1-000000186011_01_P001-Sri_Lanka-Kokilai_Lagoon" which is publicly available via the GLCF. Currently, an unofficial implementation of this technique for GRASS-GIS is available as a custom grass-addon called [https://github.com/NikosAlexandris/i.fusion.hpf.py i.fusion.hpf]

← Older revision		Revision as of 21:19, 15 August 2016
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.colors.enhance~~\|version=70~~}}		* {{cmd\|i.colors.enhance}}
	* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}		* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}
	* {{cmd\|i.pansharpen~~\|version=70~~}} ~~(GRASS 7.x)~~		* {{cmd\|i.pansharpen}}
	* [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar]		* [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar]
	* {{cmd\|i.vi~~\|version=70~~}} ~~(GRASS 7.x)~~		* {{cmd\|i.vi}}
	* {{cmd\|i.segment~~\|version=70~~}} ~~(GRASS 7.x)~~		* {{cmd\|i.segment}}

	== Pre-Processing ==		== Pre-Processing ==
Line 267:		Line 267:
	{{cmd\|r.mapcalc}} <source lang="bash" enclose=none>"Blue_Reflectance = ( ${PI} * Blue_Radiance * ${ESD}^2 ) / ( ${BAND_Esun} * cos(${SZA}) )"</source>		{{cmd\|r.mapcalc}} <source lang="bash" enclose=none>"Blue_Reflectance = ( ${PI} * Blue_Radiance * ${ESD}^2 ) / ( ${BAND_Esun} * cos(${SZA}) )"</source>

	==== ~~Automatising~~ Conversions ====		==== Automating Conversions ====

	Scripting the conversion process avoids repeating the same steps for each band separately.		Scripting the conversion process avoids repeating the same steps for each band separately.

← Older revision		Revision as of 08:19, 14 August 2016
Line 76:		Line 76:
	* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}		* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}
	* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)		* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)
			* [https://github.com/NikosAlexandris/i.quickbird.toar i.quickbird.toar]
	* {{cmd\|i.vi\|version=70}} (GRASS 7.x)		* {{cmd\|i.vi\|version=70}} (GRASS 7.x)
	* {{cmd\|i.segment\|version=70}} (GRASS 7.x)		* {{cmd\|i.segment\|version=70}} (GRASS 7.x)

← Older revision		Revision as of 08:17, 14 August 2016
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.~~landsat~~.~~rgb~~}} ~~(GRASS 6.x) \|~~ {{~~cmd~~\|i.~~colors~~.~~enhance~~\|version=70}} ~~(GRASS 7.x)~~		* {{cmd\|i.colors.enhance\|version=70}}
	* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)		* {{AddonSrc\|imagery\|i.fusion.hpf\|version=7}}
			* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)
	* {{cmd\|i.vi\|version=70}} (GRASS 7.x)		* {{cmd\|i.vi\|version=70}} (GRASS 7.x)
	* {{cmd\|i.segment\|version=70}} (GRASS 7.x)		* {{cmd\|i.segment\|version=70}} (GRASS 7.x)
	* and more

	== Pre-Processing ==		== Pre-Processing ==

← Older revision		Revision as of 19:59, 20 November 2014
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.landsat.rgb}} (GRASS 6.x) \| {{cmd\|i.colors.enhance}} (GRASS 7.x)		* {{cmd\|i.landsat.rgb}} (GRASS 6.x) \| {{cmd\|i.colors.enhance\|version=70}} (GRASS 7.x)
	* {{cmd\|i.pansharpen}}		* {{cmd\|i.pansharpen\|version=70}} (GRASS 7.x)
	* {{cmd\|i.vi}}		* {{cmd\|i.vi\|version=70}} (GRASS 7.x)
	* {{cmd\|i.segment}}		* {{cmd\|i.segment\|version=70}} (GRASS 7.x)
	* and more		* and more

← Older revision		Revision as of 20:26, 17 November 2014
Line 73:		Line 73:
	* {{cmd\|r.mapcalc}}		* {{cmd\|r.mapcalc}}
	* {{cmd\|r.colors}}		* {{cmd\|r.colors}}
	* {{cmd\|i.landsat.rgb}}		* {{cmd\|i.landsat.rgb}} (GRASS 6.x) \| {{cmd\|i.colors.enhance}} (GRASS 7.x)
	* {{cmd\|i.pansharpen}}		* {{cmd\|i.pansharpen}}
	* {{cmd\|i.vi}}		* {{cmd\|i.vi}}
	* {{cmd\|i.segment}}		* {{cmd\|i.segment}}
	* ~~...~~		* and more


	== Pre-Processing ==		== Pre-Processing ==