[R] Tif image to 8bit colour matrix.

Dear listers, I have a collection of tif images that I would like to convert, in R, to a matrix containing the values of the 8bit colour. Ideally, I would like a matrix for each of the colour channels (red, blue and green). I have 'googled' and searched the help list but have yet to find a

Re: [R] Tif image to 8bit colour matrix.

This requires the rgdal and sp packages to be installed, and assumes a 3-bandfile called image.tif ## (untested) library(rgdal) x - readGDAL(image.tif) ## first band red - as.image.SpatialGridDataFrame(x[1])$z ## second green - as.image.SpatialGridDataFrame(x[2])$z ## third blue -

Re: [R] Tif image to 8bit colour matrix.

: Tuesday, October 19, 2010 6:00 AM To: r-help@r-project.org Subject: [R] Tif image to 8bit colour matrix. Dear listers, I have a collection of tif images that I would like to convert, in R, to a matrix containing the values of the 8bit colour. Ideally, I would like a matrix for each