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badpixmap
2009 Oct 20
1
Problem/anomalous behavior with image() function (and ReadImages?)
...calls plot.imagematix(), which in turn calls image()
Alternatively, you can copy cat.jpg from the rimage package to
the data directory of ReadImages and do this:
library(pixmap)
library(ReadImages)
x <- read.jpeg(system.file("data", "cat.jpg", package="ReadImages")
catpixmap <- pixmapRGB(x) # convert imagemap to pixmap
plot(catpixmap) # plot.pixmap is an S4 method that also calls image()
(This alternative method is provided because rimage has an
irrelevant dependency on an external library FFTW2 that
complicates the process of installing rimage. The use of
cat.jpg...