Data type conversion

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Revision as of 19:14, 14 June 2021 by Hfuchs (Talk | contribs)

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We may change the data type (and radiometric resolution) of a raster layer.

  1. Click the Add raster layer QGIS 2.0 addrast.png and select a multiband raster with data type float. Convert to data type uint8 (8bit unsigned integer), value range 0 to 255.
  2. In processing toolbar, type dynamic into the search field to find the Orfeo Toolbox --> Image Manipulation --> DynamicConvert tool.
  3. Open with a double click. Specify the input and a new output file name as shown in the screenshot.
  4. Set High cut quantil and Low cut quantile to 0
  5. Click Advanced parameters and define Output pixel type uint8.
  6. Click Run.

Qgis rescale.png

The output Image raster is now recoded and saved to unsigned eight bit.

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