Make a Red-Green-Blue plot based on three layers (in a RasterBrick or RasterStack). Three layers (bands) are combined such that one is the red channel, one is the green channel, and one is the blue channel. This function could be used to make 'True (or false) color images' from Landsat and other multi-band satellite images.
Arguments
Methods
plotRGB(x, r=1, g=2, b=3, scale=255, maxpixels=100000, extent=NULL, ...)rll{
x a RasterLayer object
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)
scale Integer. Maximum (possible) value in the three channels
maxpixels Maximum number of pixels to use
extent An extent object to zoom in a region
... Any argument that can be passed to image (graphics package)
}