Tool Name	Destriping
Tool ID	5
Library ID	contrib_perego
Version	1.0
Author(s)	Alessandro Perego

Description

Destriping filter removes straight parallel stripes in raster data. It uses two low-pass filters elongated in the stripes direction; the first one is 1 pixel unit wide while the second one is wide as the striping wavelength. Their difference is the striping error which is removed from the original data to obtain the destriped DEM. This method is equivalent to that proposed by Oimoen (2000).

References

Oimoen, M.J. (2000): An Effective Filter For Removal Of Production Artifacts. In U.S. Geological Survey 7.5-Minute Digital Elevation Models. Proceedings of the Fourteenth International Conference on Applied Geologic Remote Sensing, 6-8 November, Las Vegas, NV. online

Perego, A. (2009): SRTM DEM destriping with SAGA GIS: consequences on drainage network extraction. alsperGIS - Dati geografici e software per lo studio e la rappresentazione del territorio. online

Parameters

Name	Type	Identifier	Description	Constraints
Input
Grid	grid, input	INPUT
Mask	grid, input, optional	MASK	Mask's no-data cells will be excluded from processing
Output
Destriped Grid	grid, output	RESULT3
Low-pass 1	grid, output, optional	RESULT1	Step 1: low-pass of stripe
Low-pass 2	grid, output, optional	RESULT2	Step 2: low-pass between stripe and its surroundings
Stripes	grid, output, optional	STRIPES	The difference between destriped and original grid
Options
Angle	floating point number	ANG	[Degree], 0 = horizontal, 90 = vertical	Default: 0.000000
Radius	floating point number	R	[Cells]	Minimum: 1.000000 Default: 20.000000
Stripes Distance	floating point number	D	[Cells]	Minimum: 2.000000 Default: 2.000000