Tool Confusion Matrix (Polygons / Grid)

Compares a classified polygons layer with grid classes and creates a confusion matrix and derived coefficients. Grid classes have to be defined with a look-up table and values must match those of the polygon classes for the subsequent comparison. This tool is typically used for a quality assessment of a supervised classification.

Author: O.Conrad (c) 2015
Menu: Imagery|Classification

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Classification	Grid (input)	`GRID`	-	-
	Look-up Table (*)	Table (optional input)	`GRID_LUT`	-	-
	Polygons	Shapes (input)	`POLYGONS`	-	-
Output	Confusion Matrix	Table (output)	`CONFUSION`	-	-
	Class Values	Table (output)	`CLASSES`	-	-
	Summary	Table (output)	`SUMMARY`	-	-
Options	Grid system	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Value Interpretation	Choice	`GRID_VALUES`	-	Available Choices: [0] values are class identifiers [1] use look-up table Default: 1
	Value	Table field	`GRID_LUT_MIN`	-	-
	Value (Maximum) (*)	Table field	`GRID_LUT_MAX`	-	-
	Name (*)	Table field	`GRID_LUT_NAM`	-	-
	Classes	Table field	`FIELD`	-	-
	Unclassified	Boolean	`NO_CLASS`	-	Default: 1
(*) optional

Command-line

Usage: saga_cmd imagery_classification 6 [-GRID <str>] [-GRID_VALUES <str>] [-GRID_LUT <str>] [-GRID_LUT_MIN <str>] [-GRID_LUT_MAX <str>] [-GRID_LUT_NAM <str>] [-POLYGONS <str>] [-FIELD <str>] [-CONFUSION <str>] [-CLASSES <str>] [-SUMMARY <str>] [-NO_CLASS <str>]
  -GRID:<str>        	Classification
	Grid (input)
  -GRID_VALUES:<str> 	Value Interpretation
	Choice
	Available Choices:
	[0] values are class identifiers
	[1] use look-up table
	Default: 1
  -GRID_LUT:<str>    	Look-up Table
	Table (optional input)
  -GRID_LUT_MIN:<str>	Value
	Table field
  -GRID_LUT_MAX:<str>	Value (Maximum)
	Table field
  -GRID_LUT_NAM:<str>	Name
	Table field
  -POLYGONS:<str>    	Polygons
	Shapes (input)
  -FIELD:<str>       	Classes
	Table field
  -CONFUSION:<str>   	Confusion Matrix
	Table (output)
  -CLASSES:<str>     	Class Values
	Table (output)
  -SUMMARY:<str>     	Summary
	Table (output)
  -NO_CLASS:<str>    	Unclassified
	Boolean
	Default: 1