The next version of R includes support for raster images in standard and grid graphics.

The RImageJ package uses ImageJ through rJava to read and manipulate images from various formats

Paul Murrell closed the gap and contributed code that allows using images from the RImageJ package as raster objects.

makes the graph :


This feature depends on R >= 2.11.0, so will only get available when this version becomes current, in the meantime, you can get the package from its rforge project page