Tool Support Vector Machine Classification

Integration of the OpenCV Machine Learning library for Support Vector Machine classification of gridded features.

References

OpenCV - Open Source Computer Vision
OpenCV - Machine Learning Overview
Change, C.-C. & Lin, C.-J. (2011): Libsvm: a library for support vector machines. ACM Transactions on Intelligent Systems and Technology (TIST), 2(3):27. doi:10.1145/1961189.1961199.

Author: O.Conrad (c) 2016
Menu: Imagery|Classification|Machine Learning

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Features	Grid list, input	`FEATURES`	-	-
	Training Samples	Table, input	`TRAIN_SAMPLES`	Provide a class identifier in the first field followed by sample data corresponding to the input feature grids.	-
	Training Areas	Shapes, input	`TRAIN_AREAS`	-	-
Output	Classification	Grid, output	`CLASSES`	-	-
Output	Look-up Table (*)	Table, output, optional	`CLASSES_LUT`	A reference list of the grid values that have been assigned to the training classes.	-
Options	Grid System	Grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Normalize	Boolean	`NORMALIZE`	-	Default: 0
	Colors from Features	Boolean, GUI	`RGB_COLORS`	Use the first three features in list to obtain blue, green, red components for class colour in look-up table.	Default: 0
	Training	Choice	`MODEL_TRAIN`	-	Available Choices: [0] training areas [1] training samples [2] load from file Default: 0
	Class Identifier	Table field	`TRAIN_CLASS`	-	-
	Buffer Size	Floating point	`TRAIN_BUFFER`	For non-polygon type training areas, creates a buffer with a diameter of specified size.	Minimum: 0.000000 Default: 1.000000
	Load Model	File path	`MODEL_LOAD`	Use a model previously stored to file.	-
	Save Model	File path	`MODEL_SAVE`	Stores model to file to be used for subsequent classifications instead of training areas.	-
	SVM Type	Choice	`SVM_TYPE`	-	Available Choices: [0] c-support vector classification [1] nu support vector classification [2] distribution estimation (one class) [3] epsilon support vector regression [4] nu support vector regression Default: 0
	C	Floating point	`C`	-	Minimum: 0.000000 Default: 5.000000
	Nu	Floating point	`NU`	-	Minimum: 0.000000 Default: 0.500000
	P	Floating point	`P`	-	Minimum: 0.000000 Default: 0.500000
	Kernel Type	Choice	`KERNEL`	-	Available Choices: [0] linear [1] polynomial [2] radial basis function [3] sigmoid [4] exponential chi2 [5] histogram intersection Default: 2
	Coefficient 0	Floating point	`COEF0`	-	Minimum: 0.000000 Default: 1.000000
	Degree	Floating point	`DEGREE`	-	Minimum: 0.000000 Default: 0.500000
	Gamma	Floating point	`GAMMA`	-	Minimum: 0.000000 Default: 5.000000
(*) optional

Command-line

Usage: saga_cmd imagery_opencv 7 [-FEATURES <str>] [-NORMALIZE <str>] [-CLASSES <str>] [-CLASSES_LUT <str>] [-MODEL_TRAIN <str>] [-TRAIN_SAMPLES <str>] [-TRAIN_AREAS <str>] [-TRAIN_CLASS <str>] [-TRAIN_BUFFER <double>] [-MODEL_LOAD <str>] [-MODEL_SAVE <str>] [-SVM_TYPE <str>] [-C <double>] [-NU <double>] [-P <double>] [-KERNEL <str>] [-COEF0 <double>] [-DEGREE <double>] [-GAMMA <double>]
  -FEATURES:<str>       	Features
	Grid list, input
  -NORMALIZE:<str>      	Normalize
	Boolean
	Default: 0
  -CLASSES:<str>        	Classification
	Grid, output
  -CLASSES_LUT:<str>    	Look-up Table
	Table, output, optional
  -MODEL_TRAIN:<str>    	Training
	Choice
	Available Choices:
	[0] training areas
	[1] training samples
	[2] load from file
	Default: 0
  -TRAIN_SAMPLES:<str>  	Training Samples
	Table, input
  -TRAIN_AREAS:<str>    	Training Areas
	Shapes, input
  -TRAIN_CLASS:<str>    	Class Identifier
	Table field
  -TRAIN_BUFFER:<double>	Buffer Size
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -MODEL_LOAD:<str>     	Load Model
	File path
  -MODEL_SAVE:<str>     	Save Model
	File path
  -SVM_TYPE:<str>       	SVM Type
	Choice
	Available Choices:
	[0] c-support vector classification
	[1] nu support vector classification
	[2] distribution estimation (one class)
	[3] epsilon support vector regression
	[4] nu support vector regression
	Default: 0
  -C:<double>           	C
	Floating point
	Minimum: 0.000000
	Default: 5.000000
  -NU:<double>          	Nu
	Floating point
	Minimum: 0.000000
	Default: 0.500000
  -P:<double>           	P
	Floating point
	Minimum: 0.000000
	Default: 0.500000
  -KERNEL:<str>         	Kernel Type
	Choice
	Available Choices:
	[0] linear
	[1] polynomial
	[2] radial basis function
	[3] sigmoid
	[4] exponential chi2
	[5] histogram intersection
	Default: 2
  -COEF0:<double>       	Coefficient 0
	Floating point
	Minimum: 0.000000
	Default: 1.000000
  -DEGREE:<double>      	Degree
	Floating point
	Minimum: 0.000000
	Default: 0.500000
  -GAMMA:<double>       	Gamma
	Floating point
	Minimum: 0.000000
	Default: 5.000000