Message-ID: <1055344518.1140.33.camel@christophl>
Date: 2003-06-11T15:15:18Z
From: Christoph Lehmann
Subject: pixmap question again
I could load a picture with gray levels only:
x <-
read.pnm("/home/christoph/work/projects/ffa/EPrime/pics_pnm/550_0_1.pnm")
> x
Pixmap image
Type : pixmapGrey
Size : 246x192
Resolution : 1x1
Bounding box : 0 0 192 246
> plot(x)
works fine
BUT: how can I get to the slots as "size", "grey", etc.
calling:
> x$grey
NULL
> x$size
NULL
>
why this?
I need to get the grey value of each pixel and average all grey values
over the whole picture...
thanks
christoph
--
Christoph Lehmann <lehmann at puk.unibe.ch>
University Hospital of Clinical Psychiatry