Seed Generation

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

Description

The tool allows one to create seed points from a stack of input features. Such seed points can be used, for example, as input in the 'Seeded Region Growing' tool.

Parameters

	Name	Type	Identifier	Description	Constraints
Input	Features	grid list, input	`FEATURES`	-	-
Output	Variance	grid, output	`VARIANCE`	-	-
	Seeds Grid	grid, output, optional	`SEED_GRID`	-	-
	Seed Points	shapes, output, optional	`SEED_POINTS`	-	-
Options	Grid System	grid system	`PARAMETERS_GRID_SYSTEM`	-	-
	Seed Type	choice	`SEED_TYPE`	-	Available Choices: [0] minima of variance [1] maxima of variance Default: 0
	Method	choice	`METHOD`	-	Available Choices: [0] band width smoothing [1] band width search Default: 0
	Bandwidth (Cells)	floating point number	`BAND_WIDTH`	-	Minimum: 1.000000 Default: 10.000000
	Normalize Features	boolean	`NORMALIZE`	Standardize the input features, i.e. rescale the input data (features) such that the mean equals 0 and the standard deviation equals 1. This is helpful when the input features have different scales, units or outliers.	Default: 0
	Weighting Function	choice	`DW_WEIGHTING`	-	Available Choices: [0] no distance weighting [1] inverse distance to a power [2] exponential [3] gaussian Default: 3
	Power	floating point number	`DW_IDW_POWER`	-	Minimum: 0.000000 Default: 2.000000
	Bandwidth	floating point number	`DW_BANDWIDTH`	Bandwidth for exponential and Gaussian weighting	Minimum: 0.000000 Default: 5.000000

Command Line


Usage: saga_cmd imagery_segmentation 2 [-FEATURES ] [-VARIANCE ] [-SEED_GRID ] [-SEED_POINTS ] [-SEED_TYPE ] [-METHOD ] [-BAND_WIDTH ] [-NORMALIZE ] [-DW_WEIGHTING ] [-DW_IDW_POWER ] [-DW_BANDWIDTH ]
  -FEATURES:       	Features
	grid list, input
  -VARIANCE:       	Variance
	grid, output
  -SEED_GRID:      	Seeds Grid
	grid, output, optional
  -SEED_POINTS:    	Seed Points
	shapes, output, optional
  -SEED_TYPE:      	Seed Type
	choice
	Available Choices:
	[0] minima of variance
	[1] maxima of variance
	Default: 0
  -METHOD:         	Method
	choice
	Available Choices:
	[0] band width smoothing
	[1] band width search
	Default: 0
  -BAND_WIDTH:  	Bandwidth (Cells)
	floating point number
	Minimum: 1.000000
	Default: 10.000000
  -NORMALIZE:      	Normalize Features
	boolean
	Default: 0
  -DW_WEIGHTING:   	Weighting Function
	choice
	Available Choices:
	[0] no distance weighting
	[1] inverse distance to a power
	[2] exponential
	[3] gaussian
	Default: 3
  -DW_IDW_POWER:	Power
	floating point number
	Minimum: 0.000000
	Default: 2.000000
  -DW_BANDWIDTH:	Bandwidth
	floating point number
	Minimum: 0.000000
	Default: 5.000000