The code in this library section is not supported by StatSci.

This section contains an implementation of images as external objects
in S-PLUS.  The material was developed at AT&T Bell Labs and is experimental.

To use, you must attach the image library section first since the
function `image' in this section masks the S-PLUS function `image'. You
must also attach the external library section, i.e.:

> library(image,first=T)
> library(external)

Most of the image processing functions require the PBMPLUS portable
bitmap toolkit which, at the time of this writing (October, 1992), is
available free by anonymous ftp as ftp.ee.lbl.gov:pbmplus*.tar.Z,
export.lcs.mit.edu:contrib/pbmplus*.tar.Z or
wuarchive.wustl.edu:graphics/graphics/packages/pbmplus/pbmplus*.tar.Z.
The author can be contacted at jef@well.sf.ca.us.

The only available graphics device driver for displaying these images
is the original AT&T PostScript device, now called `opostscript'.  This
device driver is available in the library section Defunct i.e. to use
it you must first type:

> library(Defunct)

For more information on these image functions see:
John M. Chambers and Neil Crellin, "Images in S", AT&T Bell
Laboratories Stat. Res. Report No. 100 (Dec. 1991).