Revision as of 19:54, 21 October 2018

Using OTB SplitImage

Click the Open Data Source Manager and then Add raster layer and select the file /geodata/raster/s2/Subset_S2A_MSIL2A_20170619T_MUL.tif.
In the processing toolbar, type split image into the search field to find the OTB --> Image Manipulation --> SplitImage tool and open it.

Click the Open Data Source Manager and then Add raster layer and select the file /geodata/raster/s2/Subset_S2A_MSIL2A_20170619T_MUL.tif.
In the processing toolbar, type Translate into the search field to find the GDAL\OGR --> Translate (Convert format) tool and open it.

- Unfold the Advanced parameters and change the output data format to unsigned 16bit integer): -ot UInt16
- Click the button ... of Converted to select path and name of output file.
- Type in the textbox Additional creation parameters: -b 1

( This selects only the first band).

- Repeat the steps for other bands: change the name of the output file and edit the -b option accordingly.

Create a multiband file with a spectral subset of 4 bands. Change the output file and the additional creation options:

- Converted output file:Subset_S2A_MSIL2A_20170619T_B02030408.tif
- Additional creation parameters: -b 2 -b 3 -b 4 -b 8
- Click Run.

@@ Line 2: / Line 2: @@
 # Click the {{button|text=Open Data Source Manager}} [[Image:QGIS_3.0_datasource.png|30px]] and then {{button|text=Add raster layer}} [[Image:QGIS_2.0_addrast.png|20px]] and select the file  ''/geodata/raster/s2/Subset_S2A_MSIL2A_20170619T_MUL.tif''.
 # In the processing toolbar, type {{typed|text=split image}} into the search field to find the {{button|text=OTB --> Image Manipulation --> SplitImage}} tool and open it.
-[[File:qgis-otb-splitimage.png]|200px]
+[[File:qgis-otb-splitimage.png|200px]]
 =Using GDAL Translate=