View source for Map validation

=== QGIS Processing toolbox with OTB plugin ===
# Type into the search box of Processing tools {{typed|text=Confusion}} and double click '''ComputeConfusionMatrix'''.
# Set the classified map as {{button|text=Input image}}.
# Select the output file name with the extension '''.csv''' under {{button|text=Matrix output}}.
# The validation data can be in vector or raster format. Select as Ground truth {{button|text=vector}}.
# Set the validation file '''CE_2020-01-03.shp''' as {{button|text=Input reference vector data}}.
# Select the Field name '''valid_clas'''.
# Click {{button|text=Run}}.
# Open the CSV output file with Libre Office Calc or MS Excel. Calculate User accuracies, Producer accuracies, Overall accuracy and Kappa index.

[[File:qgis_otb_confusionMatrix.png|400px]]

[[Category:QGIS Tutorial]]