Raster metadata

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# 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]]. Select a single band raster file ''/geodata/lucc/s2/Subset_S2A_MSIL2A_20170619T_B2.tif''.
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# 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]]. Select a single band raster file.
# After clicking {{button|text=Add}}, {{button|text=Close}} the raster layer appears on the QGIS canvas.
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# After clicking {{button|text=Add}}, {{button|text=Close}} the selection window..
# 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.
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# Right click the layer name in the Layers Panel and select {{mitem|text=Properties --> Information}}. Report on the spatial reference system, size of the image in pixels (Width = columns and Height = rows), Pixel size and if a specific No-Data value is assigned.
# 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. If band statistics are not shown go to {{mitem|text=Properties --> Histogram}} and click {{mitem|text=Compute Histogram}}. If layer extents are not shown go to {{mitem|text=Properties --> Metadata --> Extent}}. Click {{button|text=Set CRS from Layer}} and then {{button|text=Calculate from layer}}.
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# 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. If band statistics are not shown go to {{mitem|text=Properties --> Histogram}} and click {{mitem|text=Compute Histogram}}. Click {{button|text=OK}} to close the application.
 
# Report on:
 
# Report on:
 
#* Pixel size
 
#* Pixel size
#* No Data Value
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#* Columns
 +
#* Rows
 
#* Data type
 
#* Data type
 
#* Layer spatial reference system
 
#* Layer spatial reference system
 
#* Layer extent (Xmin, Ymin, Xmax, Ymax)
 
#* Layer extent (Xmin, Ymin, Xmax, Ymax)
 
[[Category: Working with Raster Data]]
 
[[Category: Working with Raster Data]]

Latest revision as of 10:11, 27 October 2021

  1. Click the Open Data Source Manager QGIS 3.0 datasource.png and then Add raster layer QGIS 2.0 addrast.png. Select a single band raster file.
  2. After clicking Add, Close the selection window..
  3. Right click the layer name in the Layers Panel and select Properties --> Information. Report on the spatial reference system, size of the image in pixels (Width = columns and Height = rows), Pixel size and if a specific No-Data value is assigned.
  4. Choose Properties --> Information QGIS 2.0 metadata info.png. In the "properties" window scroll down and have a look on univariate descriptive statistics such as minimum, maximum, mean and standard deviation. If band statistics are not shown go to Properties --> Histogram and click Compute Histogram. Click OK to close the application.
  5. Report on:
    • Pixel size
    • Columns
    • Rows
    • Data type
    • Layer spatial reference system
    • Layer extent (Xmin, Ymin, Xmax, Ymax)
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