elevation_map()
multichannel_threshold()
sh_markers()
shw_segmentation()
barb_thresh()
barb_hue()
canny_labs()
centre_primary_label()
central_ob()
canny_central_ob()
crop_region()
read_fimg()
scale_zero_to_one()
multichannel_mask()
paint_col()
threshold_between()
label_horizontally()
parse_coord_file()
coord_dist_map()
im_dist_map()
centre_seed_dist()
SkeletonNetwork