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| 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 |
| masking | Image masking |
| masking-method | Image masking |
| mask_hs | Mask hemisphere |
| 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 |
| read_caim-method | Read a canopy image from a file |
| regional_thresholding | Regional thresholding |
| reproject_to_equidistant | Reproject to equidistant |
| reproject_to_equidistant-method | 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 |