Dear List,
I am trying to plot an RGB image using plotRGB, and I was wondering if
there is anyway to turn the NA regions of the image to a different color
(say white or grey)?
For instance, in the following code, how to a turn the first and last 5
columns of the image something other than black?
library(raster)
br <- brick(lapply(1:3, function(x) {
r <- raster(nrow = 100, ncol = 100)
r[] <- sample(0:255, ncell(r), replace = T)
r[cellFromCol(r, colnr = c(1:5, 96:100))] <- NA
return(r)
}))
plotRGB(br, r = 1, g = 2, b = 3)
Thanks in advance for your advice, and I will be happy to try alternate RGB
plotting approaches as well.
Cheers, Lyndon
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