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
Christoph Lehmann <christoph.lehmann at gmx.ch>