AnthroSpace

rimage is an image processing module for R. To install the package, fftw as well as libjpeg are needed. Here is what worked for me on Mac Intel 10.4.11 , R version 2.6.0.

Download FFTW 2.1.5 source here
(Do not use the latest version 3!)

Unpack and cd into the directory.
./configure
make
sudo make install

Download libjpeg source here. (1)

Unpack and cd into the directory.
./configure
make
sudo make install-lib

Then install the package in R.

These references were helpful to point me in the right direction.
http://tolstoy.newcastle.edu.au/R/help/06/09/34479.html
http://www.spy-hill.com/help/boinc/

(1) Even though jpeglib.h comes installed under the UniximageIO.framework R does not find it. A symbolic link did not do the trick.