apply_thr               Apply threshold
azimuth_image           Azimuth image
calc_diameter           Calculate diameter
calc_zenith_raster_coordinates
                        Calculate zenith raster coordinates
calibrate_lens          Calibrate lens
enhance_caim            Enhance canopy image
expand_noncircular      Expand non-circular
extract_feature         Extract feature
find_sky_pixels         Find sky pixles
fit_coneshaped_model    Fit cone-shaped model
fit_trend_surface       Fit a trend surface to sky digital numbers
fix_predicted_sky       Fix predicted sky
gbc                     Gamma back correction
lens                    Lens database
local_fuzzy_thresholding
                        local fuzzy thresholding
mask_hs                 Mask hemisphere
masking                 Image masking
membership_to_color     Compute membership to a color
normalize               Normalize data
ootb_mblt               Out-of-the-box model-based local thresholding
read_bin                Read binarized images
read_caim               Read a canopy image from a file
regional_thresholding   Regional thresholding
reproject_to_equidistant
                        Reproject to equidistant
rings_segmentation      Rings segmentation
sectors_segmentation    Sectors segmentation
sky_grid_segmentation   Sky grid segmentation
test_lens_coef          Test lens projection functions
thr_image               Threshold image
write_bin               Write binarized images
write_caim              Write canopy image
zenith_image            Zenith image
