ng_image_files:
Import color image files (png, jpg, bmp, etc...) into a NG_image object
Description
NG_image objects are needed to plot images in the tk2d device.
Supported file types are those supported by the tcl Img extension. If
your R can not access the Img extension (currently under Windows) you
can not import such files. However if you know tcl and R well enough,
you might create your own NG_image object as shown in the images_iris
demo.
See the "files_aloi" and "images_iris" demos
(demo(package="RnavGraph")) for examples.