presetThr: Binarize images with a preset threshold.

In GastonMauroDiaz/caiman: Canopy Image Analysis

Description

Given a single layer image and a global threshold value, it returns a binarized image. All pixels above the threshold are replaced with 1 and the rest with 0.

Usage

presetThr(x, ...)

## S4 method for signature 'RasterLayer'
presetThr(x, thr)

Arguments

x	RasterLayer.
...	Additional arguments (none implemented)
thr	numeric. Threshold value. It should be between minimum and maximum layer value.

Value

BinImage.

See Also

autoThr.

Examples

x <- loadPhoto()
x <- raster::subset(x, 3)
bin <- presetThr(x, 125)
bin
plot(bin)

GastonMauroDiaz/caiman documentation built on Jan. 22, 2022, 4:43 a.m.