Raster metadata
From AWF-Wiki
(Difference between revisions)
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# Click the {{button|text=Open Data Source Manger}} [[Image:QGIS_3.0_datasource.png|30px]] and then {{button|text=Add raster layer}} [[Image:QGIS_2.0_addrast.png|20px]]. Select file ''/geodata/raster/s2/Subset_S2A_MSIL2A_20170619T_MUL.tif''. | # Click the {{button|text=Open Data Source Manger}} [[Image:QGIS_3.0_datasource.png|30px]] and then {{button|text=Add raster layer}} [[Image:QGIS_2.0_addrast.png|20px]]. Select file ''/geodata/raster/s2/Subset_S2A_MSIL2A_20170619T_MUL.tif''. | ||
| − | # After clicking {{button|text= | + | # After clicking {{button|text=Add}}, {{button|text=Close}}the raster layer appears on the QGIS canvas. |
# Right click the layer name in the Layers Panel and select {{mitem|text=Properties --> General}}. Report on the spatial reference system, size (columns and rows in pixels) and if a specific No-Data value is assigned. | # Right click the layer name in the Layers Panel and select {{mitem|text=Properties --> General}}. Report on the spatial reference system, size (columns and rows in pixels) and if a specific No-Data value is assigned. | ||
| − | # Choose {{mitem|text=Properties --> | + | # Choose {{mitem|text=Properties --> Information}} [[Image:QGIS_2.0_metadata_info.png|100px]]. In the "properties" window scroll down and have a look on univariate descriptive statistics such as minimum, maximum, mean and standard deviation for each band. How many bands are included in the multiband file? If statistics are not shown for all bands go to {{mitem|text=Properties --> Histogram}} and click {{mitem|text=Prefs/Actions --> Recompute Histogram}}. |
# Jump back to the Metadata tab and report: | # Jump back to the Metadata tab and report: | ||
#* Pixel size | #* Pixel size | ||
Revision as of 16:06, 21 October 2018
- Click the Open Data Source Manger
and then Add raster layer 
. Select file /geodata/raster/s2/Subset_S2A_MSIL2A_20170619T_MUL.tif.
- After clicking Add, Closethe raster layer appears on the QGIS canvas.
- Right click the layer name in the Layers Panel and select Properties --> General. Report on the spatial reference system, size (columns and rows in pixels) and if a specific No-Data value is assigned.
- Choose Properties --> Information
. In the "properties" window scroll down and have a look on univariate descriptive statistics such as minimum, maximum, mean and standard deviation for each band. How many bands are included in the multiband file? If statistics are not shown for all bands go to Properties --> Histogram and click Prefs/Actions --> Recompute Histogram.
- Jump back to the Metadata tab and report:
- Pixel size
- No Data Value
- Data type
- Layer spatial reference system
- Layer extent (Xmin, Ymin, Xmax, Ymax)
