Principal component analysis

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* Click on {{button|text=Run}} to execute the algorithm.
 
* Click on {{button|text=Run}} to execute the algorithm.
  
[[File:pca_otb.png|400px]]
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[[File:pca_otb.png|400px]][[File:pca.png|400px]]
  
 
[[category:QGIS Tutorial]]
 
[[category:QGIS Tutorial]]

Revision as of 19:51, 16 November 2017

  • In the search engine of the Processing Toolbox, type PCA and select DimensionalityReduction(pca) under Image Filtering of the Orfeo Toolbox.
  • Under the Parameter tab, select Multispectral band file as the input layer.
  • Select pca under the Algorithm tab.
  • Enter 4 as the number of components.
  • Specify the directory to save the output file.
  • Untick output file after running algorithm (inverse output image) option.
  • Click on Run to execute the algorithm.

Pca otb.pngPca.png

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