otbEdge: Calculates edges for a given kernel size

In environmentalinformatics-marburg/satelliteTools: What the package does (short line)

Description

Calculates edges for a given kernel size

Usage

otbEdge(input = NULL, output_name = "edge", ram = "8192",
  filter = "gradient", filter.touzi.xradius = 1, filter.touzi.yradius = 1,
  channel = NULL, return_raster = FALSE, path_output = NULL,
  verbose = FALSE)

Arguments

input	of GeoTiff containing 1 ore more gray value band(s)
output_name	the output mono band image containing the edge features
ram	reserved memory in MB
filter	the choice of edge detection method (gradient/sobel/touzi)
filter.touzi.xradius	x radius of the Touzi processing neighborhood (if filter==touzi) (default value is 1 pixel)
filter.touzi.yradius	y radius of the Touzi processing neighborhood (if filter==touzi) (default value is 1 pixel)
channel	sequence of bands to be processed
return_raster	boolean if TRUE a raster stack is returned
verbose	switch for system messages default is FALSE

Value

list of geotiffs containing thelocal statistics for each channel

Note

the otb is used for filtering. please provide a GeoTiff file

Author(s)

Chris Reudenbach

Examples

## Not run: 
url<-"http://www.ldbv.bayern.de/file/zip/5619/DOP%2040_CIR.zip"
res <- curl::curl_download(url, "testdata.zip")
unzip(res,junkpaths = TRUE,overwrite = TRUE)
otbedge(input=paste0(getwd(),"4490600_5321400.tif"),filter = "sobel")

## End(Not run)

environmentalinformatics-marburg/satelliteTools documentation built on May 16, 2019, 8:16 a.m.