[R] identify with image

[kjetil brinchmann halvorsen]

Hola!

I will want to identify pixels in an image with the mouse, for 
so getting the image data from the matrix(es), for use in subsequent 
discriminant analysis. But the following bombs R:
(windows XP, rw1071)

> str(baboon)
 list()
 - attr(*, "size")= int [1:2] 512 512
 - attr(*, "cellres")= num [1:2] 1 1
 - attr(*, "bbox")= num [1:4] 0 0 512 512
 - attr(*, "channels")= chr "grey"
 - attr(*, "bbcent")= logi FALSE
 - attr(*, "class")= chr "pixmapGrey"
 - attr(*, "grey")= num [1:512, 1:512] 0.537 0.510 0.345 0.259 0.322 
...
> class(baboon)
[1] "pixmapGrey"
> library(pixmap)
> plot(baboon)
> identify(baboon, n=1)

... and then R bombs!

What to do?

Kjetil Halvorsen