Tool Edge Detection (ViGrA)
Edge detection.
References
- Author: O.Conrad (c) 2009
 
- Menu: Imagery|ViGrA [deprecated]
 
Parameters
|   | Name | Type | Identifier | Description | Constraints | 
| Input | Input | grid, input | INPUT | - | - | 
| Output | Edges | grid, output | OUTPUT | - | - | 
| Options | Grid System | grid system | PARAMETERS_GRID_SYSTEM | - | - | 
 | Detector type | choice | TYPE | - | Available Choices: [0] Canny [1] Shen-Castan Default: 0 | 
 | Operator scale | floating point number | SCALE | - | Minimum: 0.000000 Default: 1.000000 | 
 | Gradient threshold | floating point number | THRESHOLD | - | Minimum: 0.000000 Default: 1.000000 | 
Command-line
Usage: saga_cmd imagery_vigra 1 [-INPUT <str>] [-OUTPUT <str>] [-TYPE <str>] [-SCALE <double>] [-THRESHOLD <double>]
  -INPUT:<str>       	Input
	grid, input
  -OUTPUT:<str>      	Edges
	grid, output
  -TYPE:<str>        	Detector type
	choice
	Available Choices:
	[0] Canny
	[1] Shen-Castan
	Default: 0
  -SCALE:<double>    	Operator scale
	floating point number
	Minimum: 0.000000
	Default: 1.000000
  -THRESHOLD:<double>	Gradient threshold
	floating point number
	Minimum: 0.000000
	Default: 1.000000