nicergb: Pretty Red-Green-Blue plot based on three raster* layers.
In benmack/oneClass: One-class classification in the absence of test data

Description Usage Arguments Value Author(s) See Also Examples

The nicergb function is a wrapper for plotRGB in package package raster.

1 2	nicergb(img, r = 1, g = 2, b = 3, stretch = 2, readjust = FALSE, fixed = NULL, nodata = NULL)

`img`	RasterBrick or RasterStack
`r`	integer. Index of the Red channel, between 1 and nlayers(x)
`g`	integer. Index of the Green channel, between 1 and nlayers(x)
`b`	integer. Index of the Blue channel, between 1 and nlayers(x)
`stretch`	numeric. linear stretch to be applied. Values between 0 and 50 describe proportion (in percent) to be cut away from lower and upper quantile.
`readjust`	logical. If `TRUE`, the channel with the largest range is scaled to its maximum. The ranges of the other two channels are stretched but maintaining the relative proportion.
`fixed`	matrix of 3 x 2 with thresholds for RGB
`nodata`	numeric. no data value to be ignored.

A list with the following objects:

original.rangeoriginal range of greyscale values
plotted.rangethe plotted range of greyscale values
color.stretchminimum and maximum color values

Sebastian Schmidtlein

plotRGB

## Not run: 
## Load image
img <- brick(system.file("external/rlogo.grd", package="raster"))
## Plot as RGB
nicergb (img)
## Cut the upper and lower 20% of the histogram and stretch the rest
nicergb (img, stretch = 20)

## End(Not run)