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I've writen this function (imagenrgb) to display a (m,n,3) array as a RGB image with ngris^3 colors and,optionally, stretching. If option ver=F, it does not display but saves a pseudocolor version of the image as a list (so that subsequent displays are faster). I'd appreciate feedback and improvements and hope that it's useful for others. Example of use: > dim(imatest) [1] 100

I?ve installed R 3.7.0 on a new laptop running macos 10.14.5 and have managed to get most of my usual packages to compile from source with a ~/.R/Makevars file that looks like this: CC=/usr/local/clang8/bin/clang CXX=/usr/local/clang8/bin/clang++ LDFLAGS=-L/usr/local/clang8/lib CPPFLAGS=-I/usr/local/clang8/include -I/opt/X11/include/freetype2 FC=/usr/local/gfortran/bin/gfortran

I have seen several posts (but few answers) in "R-help search" as to whether there are any packages that use R to process digital images. There are several categories related to the general type of problem that are useful to know about: -- Any existing packages for taking a digital image format {any flavor like TIFF, jpg, png, or GIF (or even TWAIN input)} and representing it internally

On 02/06/2019 16:28, Koenker, Roger W wrote: > I?ve installed R 3.7.0 on a new laptop running macos 10.14.5 and have managed to get most of my usual packages I presume 'R 3.7.0' is R-devel: it is not released and may never be released under that version. > to compile from source with a ~/.R/Makevars file that looks like this: > > CC=/usr/local/clang8/bin/clang >

Hi there I'm looking for a function to read PNG-bitmap-images from a file into R. I only found: - the pixmap-package which cannot import png or similar formats - the rimage-package which can only import lossy jpeg-images (the convertion from png to jpeg modifies the data!) Is there any possibility to read PNG-files? Thanks for any help Dominic Sydler