Tool Confusion Matrix (Two Grids)

Compares two classified grids and creates a confusion matrix and derived coefficients as well as the combinations of both classifications as new grid. Grid classes have to be defined with a look-up table and values of both grids must match each other for the subsequent comparison. A typical application is a change detection analysis based on land cover classification of satellite imagery.

Author: O.Conrad (c) 2010
Menu: Imagery|Classification

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Classification 1	Grid, input	`ONE`	-	-
	Look-up Table (*)	Table, input, optional	`ONE_LUT`	-	-
	Classification 2	Grid, input	`TWO`	-	-
	Look-up Table (*)	Table, input, optional	`TWO_LUT`	-	-
Output	Combined Classes	Grid, output	`COMBINED`	-	-
	Confusion Matrix	Table, output	`CONFUSION`	-	-
	Class Values	Table, output	`CLASSES`	-	-
	Summary	Table, output	`SUMMARY`	-	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Value	Table field	`ONE_LUT_MIN`	-	-
	Value (Maximum) (*)	Table field	`ONE_LUT_MAX`	-	-
	Name (*)	Table field	`ONE_LUT_NAM`	-	-
	Value	Table field	`TWO_LUT_MIN`	-	-
	Value (Maximum) (*)	Table field	`TWO_LUT_MAX`	-	-
	Name (*)	Table field	`TWO_LUT_NAM`	-	-
	Report Unchanged Classes	Boolean	`NOCHANGE`	-	Default: 1
	Include Unclassified Cells	Boolean	`NODATA`	-	Default: 1
	Output as...	Choice	`OUTPUT`	-	Available Choices: [0] cells [1] percent [2] area Default: 0
(*) optional

Command-line

Usage: saga_cmd imagery_classification 2 [-ONE <str>] [-ONE_LUT <str>] [-ONE_LUT_MIN <str>] [-ONE_LUT_MAX <str>] [-ONE_LUT_NAM <str>] [-TWO <str>] [-TWO_LUT <str>] [-TWO_LUT_MIN <str>] [-TWO_LUT_MAX <str>] [-TWO_LUT_NAM <str>] [-COMBINED <str>] [-NOCHANGE <str>] [-NODATA <str>] [-CONFUSION <str>] [-OUTPUT <str>] [-CLASSES <str>] [-SUMMARY <str>]
  -ONE:<str>        	Classification 1
	Grid, input
  -ONE_LUT:<str>    	Look-up Table
	Table, input, optional
  -ONE_LUT_MIN:<str>	Value
	Table field
  -ONE_LUT_MAX:<str>	Value (Maximum)
	Table field
  -ONE_LUT_NAM:<str>	Name
	Table field
  -TWO:<str>        	Classification 2
	Grid, input
  -TWO_LUT:<str>    	Look-up Table
	Table, input, optional
  -TWO_LUT_MIN:<str>	Value
	Table field
  -TWO_LUT_MAX:<str>	Value (Maximum)
	Table field
  -TWO_LUT_NAM:<str>	Name
	Table field
  -COMBINED:<str>   	Combined Classes
	Grid, output
  -NOCHANGE:<str>   	Report Unchanged Classes
	Boolean
	Default: 1
  -NODATA:<str>     	Include Unclassified Cells
	Boolean
	Default: 1
  -CONFUSION:<str>  	Confusion Matrix
	Table, output
  -OUTPUT:<str>     	Output as...
	Choice
	Available Choices:
	[0] cells
	[1] percent
	[2] area
	Default: 0
  -CLASSES:<str>    	Class Values
	Table, output
  -SUMMARY:<str>    	Summary
	Table, output