segRaster: segRaster

In RRemelgado/rsMove: Guidelines for the use of Remote Sensing in Movement Ecology

Description

Connected-region based raster segmentation that preserves spatial gradients.

Usage

segRaster(x, break.point = 0.1, min.value = 0.5)

Arguments

x	Object of class RasterLayer.
break.point	Difference threshold. Default is 0.05.
min.value	Minimum value. Default is 0.5.

Details

The function segments x using a connected component region labeling approach. For each pixel, the function estimates the difference between it and its immediate neighbors. The pixels where the difference is below break.point are aggregated into a single region. Moreover, the user can define a minimum pixel value using min.value which will ignore all pixels below it. The output of this function consists of:

• regions - Region raster image.

• stats - Basic statistics for each pixel region.

Value

A list object.

See Also

predictResources

Examples

## Not run: 

 require(raster)

 # load example probability image
 file <- system.file('extdata', 'probabilities.tif', package="rsMove")
 r <- raster(file)

 # segment probabilities
 rs <- segRaster(r)


## End(Not run)

RRemelgado/rsMove documentation built on June 7, 2020, 5:12 p.m.