R help - Aug 2008 - Statistics on raster pictures - asking for an advice

Hello, I need to do some basic statistics on raster images (tiff or
png). I need only an advice where to start, which package is the most
appropriate. My search attempts were without success, yet.

Many thanks

Tomas

Take a look  at packages pixmap and rimage ... and read.picture() in package
SoPhy for reading tiff images.
Currently there seems to be no way of reading in png files directly, so they
need to be converted first.

Kenn

On Wed, Aug 6, 2008 at 11:47 AM, Tomas Lanczos <lanczos@fns.uniba.sk>
wrote:
> Hello, I need to do some basic statistics on raster images (tiff or
> png). I need only an advice where to start, which package is the most
> appropriate. My search attempts were without success, yet.
>
> Many thanks
>
> Tomas
>
> ______________________________________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
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There a several pure R packages available like EBImage,pixmap,rimage and
rgdal (reads images
from which you can extract the different bands).

I also offer a software which combines ImageJ and R and is capable to
transfer images to R and create
images from R easily by means of the Rserve application.

Example:
http://www.uni-bielefeld.de/biologie/Oekosystembiologie/bio7app/flashtut/imagetransfer.htm

Statistics then can easily be done on the transfered matrix!

The application can be downloaded at:
http://www.uni-bielefeld.de/biologie/Oekosystembiologie/bio7app/

With kind regards

M. Austenfeld


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