Tool Name	Confusion Matrix (Two Grids)
Tool ID	2
Library ID	imagery_classification
Version	1.0
Author(s)	O.Conrad (c) 2010

Description

The tool allows one to compare two classified grids. It creates a confusion matrix and derived coefficients as well as the combinations of both classifications as new grid. The values of both grids must match each other in order to do the comparison.
The tool provides three options to define the grid classes:
- by providing a look-up table for each grid
- by coloring each grid with a look-up table (colors type = classified) beforehand (only available in the GUI)
- by preparing the grid values appropriately; i.e., if no look-up table is provided, the tool simply extracts the classes from the grid values found in each grid
A typical application is a change detection analysis based on land cover classification of satellite imagery.

Parameters

Name	Type	Identifier	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
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