classify_pixels	classify_pixels
define_cat	define_cat
define_rule	define_rule
define_subcat	define_subcat
label_rule	label_rule
pixelclasser	pixelclasser
place_rule	place_rule
plot_pixels	plot_pixels
plot_rgb_plane	plot_rgb_plane
plot_rule	plot_rule
read_image	read_image
save_classif_image	save_classif_image
transform_colours	transform_colours
