[R] reading tiff files

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Nov 20 15:33:41 CET 2001

On Tue, 20 Nov 2001, Laurent Gautier wrote:

> Dear all,
> Following the answers to my previous post, it seems that the way is to
> convert first the picture before being abble to read it using the
> pixmap package.
> Would it make sense to have a function in pixmap to directly read tiff
> file ?
> I was thinking of making a function for that would do the job, and would
> be ready to make the extra step to have something eventually usefull for
> others (and why not included in the pixmap package).
> suggestions ?

Unfortunately, I believe tiff is not well-defined as it is an extensible
format with a very large number of possibilities.  I think this is best
left to an external tool, none of which are (AFAIK) comprehensive.

AFAIR, pdftex took out tiff support after a while for exactly this reason.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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