Tool Supervised Classification for Grids
Supervised Classification
- Author: O.Conrad (c) 2005
- Menu: Imagery|Classification
Parameters
| Name | Type | Identifier | Description | Constraints | |
|---|---|---|---|---|---|
| Input | Features | Grid list, input | GRIDS | - | - |
| Training Areas (*) | Shapes, input, optional | TRAINING | - | - | |
| Output | Classification | Grid, output | CLASSES | - | - |
| Look-up Table (*) | Table, output, optional | CLASSES_LUT | A reference list of the grid values that have been assigned to the training classes. | - | |
| Quality (*) | Grid, output, optional | QUALITY | Dependent on chosen method, these are distances or probabilities. | - | |
| Options | Grid System | Grid system | PARAMETERS_GRID_SYSTEM | - | - |
| Normalise | Boolean | NORMALISE | - | Default: 0 | |
| Class Identifier | Table field | TRAINING_CLASS | - | - | |
| Load Statistics from File... | File path | FILE_LOAD | - | - | |
| Save Statistics to File... | File path | FILE_SAVE | - | - | |
| Method | Choice | METHOD | - | Available Choices: [0] Binary Encoding [1] Parallelepiped [2] Minimum Distance [3] Mahalanobis Distance [4] Maximum Likelihood [5] Spectral Angle Mapping [6] Winner Takes All Default: 2 | |
| Distance Threshold | Floating point | THRESHOLD_DIST | Let pixel stay unclassified, if minimum euclidian or mahalanobis distance is greater than threshold. | Minimum: 0.000000 Default: 0.000000 | |
| Spectral Angle Threshold (Degree) | Floating point | THRESHOLD_ANGLE | Let pixel stay unclassified, if spectral angle distance is greater than threshold. | Minimum: 0.000000 Maximum: 90.000000 Default: 0.000000 | |
| Probability Threshold | Floating point | THRESHOLD_PROB | Let pixel stay unclassified, if maximum likelihood probability value is less than threshold. | Minimum: 0.000000 Maximum: 100.000000 Default: 0.000000 | |
| Probability Reference | Choice | RELATIVE_PROB | - | Available Choices: [0] absolute [1] relative Default: 1 | |
| Binary Encoding | Boolean | WTA_0 | - | Default: 0 | |
| Parallelepiped | Boolean | WTA_1 | - | Default: 0 | |
| Minimum Distance | Boolean | WTA_2 | - | Default: 0 | |
| Mahalanobis Distance | Boolean | WTA_3 | - | Default: 0 | |
| Maximum Likelihood | Boolean | WTA_4 | - | Default: 0 | |
| Spectral Angle Mapping | Boolean | WTA_5 | - | Default: 0 | |
| Update 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 | |
| (*) optional | |||||
Command-line
Usage: saga_cmd imagery_classification 0 [-GRIDS <str>] [-NORMALISE <str>] [-CLASSES <str>] [-CLASSES_LUT <str>] [-QUALITY <str>] [-TRAINING <str>] [-TRAINING_CLASS <str>] [-FILE_LOAD <str>] [-FILE_SAVE <str>] [-METHOD <str>] [-THRESHOLD_DIST <double>] [-THRESHOLD_ANGLE <double>] [-THRESHOLD_PROB <double>] [-RELATIVE_PROB <str>] [-WTA_0 <str>] [-WTA_1 <str>] [-WTA_2 <str>] [-WTA_3 <str>] [-WTA_4 <str>] [-WTA_5 <str>] -GRIDS:<str> Features Grid list, input -NORMALISE:<str> Normalise Boolean Default: 0 -CLASSES:<str> Classification Grid, output -CLASSES_LUT:<str> Look-up Table Table, output, optional -QUALITY:<str> Quality Grid, output, optional -TRAINING:<str> Training Areas Shapes, input, optional -TRAINING_CLASS:<str> Class Identifier Table field -FILE_LOAD:<str> Load Statistics from File... File path -FILE_SAVE:<str> Save Statistics to File... File path -METHOD:<str> Method Choice Available Choices: [0] Binary Encoding [1] Parallelepiped [2] Minimum Distance [3] Mahalanobis Distance [4] Maximum Likelihood [5] Spectral Angle Mapping [6] Winner Takes All Default: 2 -THRESHOLD_DIST:<double> Distance Threshold Floating point Minimum: 0.000000 Default: 0.000000 -THRESHOLD_ANGLE:<double> Spectral Angle Threshold (Degree) Floating point Minimum: 0.000000 Maximum: 90.000000 Default: 0.000000 -THRESHOLD_PROB:<double> Probability Threshold Floating point Minimum: 0.000000 Maximum: 100.000000 Default: 0.000000 -RELATIVE_PROB:<str> Probability Reference Choice Available Choices: [0] absolute [1] relative Default: 1 -WTA_0:<str> Binary Encoding Boolean Default: 0 -WTA_1:<str> Parallelepiped Boolean Default: 0 -WTA_2:<str> Minimum Distance Boolean Default: 0 -WTA_3:<str> Mahalanobis Distance Boolean Default: 0 -WTA_4:<str> Maximum Likelihood Boolean Default: 0 -WTA_5:<str> Spectral Angle Mapping Boolean Default: 0