otb_stat: Calculates local statistics for a given kernel size

In uavRst: Unmanned Aerial Vehicle Remote Sensing Tools

Description

Calculates local statistics for a given kernel size

Usage

otb_stat(
  input = NULL,
  out = "localStat",
  ram = "8192",
  radius = 3,
  channel = NULL,
  retRaster = FALSE,
  outDir = NULL,
  verbose = FALSE,
  otbLinks = NULL
)

Arguments

input	of GeoTiff containing 1 ore more gray value bands
out	string pattern vor individual naming of the output file(s)
ram	reserved memory in MB
radius	computational window in pixel
channel	sequence of bands to be processed
retRaster	boolean if TRUE a raster stack is returned
outDir	output Directory
verbose	switch for system messages default is FALSE
otbLinks	list. of GI tools cli pathes

Value

raster* object

Note

the otb is used for the calculation of the statistics. Please provide a GeoTiff file

Author(s)

Chris Reudenbach

Examples

## Not run: 
# load libraries
require(uavRst)
require(link2GI)
require(listviewer)

setwd(tempdir())

# check if OTB exists
otbLinks <- link2GI::linkOTB()

if (otbLinks$exist) {
data("rgb")
raster::plotRGB(rgb)
fn<-file.path(tempdir(),"rgb.tif")
raster::writeRaster(rgb, 
                    filename=fn,
                    format="GTiff", 
                    overwrite=TRUE)
# get help
cmd<-link2GI::parseOTBFunction(algo = "LocalStatisticExtraction",gili=otbLinks)
listviewer::jsonedit(cmd$help)

# calculate statistics
result<- otb_stat(input=fn,
                  radius=5,
                  retRaster = TRUE,
                  channel = 1, 
                  otbLinks = otbLinks)
# plot the results :
raster::plot(result[[1]])
}

## End(Not run)

uavRst documentation built on Dec. 30, 2019, 5:06 p.m.