| apply_thr | Apply threshold |
| azimuth_image | Azimuth image |
| calc_diameter | Calculate diameter |
| calc_zenith_raster_coord | Calculate zenith raster coordinates |
| calc_zenith_raster_coordinates | Calculate zenith raster coordinates |
| calibrate_lens | Calibrate lens |
| chessboard | Chessboard segmentation |
| cie_sky_model_raster | CIE sky model raster |
| colorfulness | Quantify the colorfulness of an image |
| defuzzify | Defuzzify fuzzy classification |
| enhance_caim | Enhance canopy image |
| expand_noncircular | Expand non-circular |
| extract_dn | Extract digital numbers |
| extract_feature | Extract feature |
| extract_rl | Extract relative luminance |
| extract_sky_points | Extract sky points |
| extract_sun_coord | Extract sun coordinates |
| find_sky_pixels | Find sky pixels |
| find_sky_pixels_nonnull | Find sky pixels following the non-null criteria |
| fisheye_to_equidistant | Fisheye to equidistant |
| fisheye_to_pano | Fisheye to panoramic |
| fit_cie_sky_model | Fit CIE sky model |
| fit_coneshaped_model | Fit cone-shaped model |
| fit_trend_surface | Fit a trend surface to sky digital numbers |
| fix_predicted_sky | Fix reconstructed sky |
| fix_reconstructed_sky | Fix reconstructed sky |
| gbc | Gamma back correction |
| interpolate_sky_points | Interpolate sky points |
| lens | Lens database |
| local_fuzzy_thresholding | local fuzzy thresholding |
| masking | Image masking |
| mask_hs | Mask hemisphere |
| mask_sunlit_canopy | Mask sunlit canopy |
| membership_to_color | Compute the membership to a target color |
| normalize | Normalize data |
| obia | Object-based image analysis of canopy photographs |
| ootb_mblt | Out-of-the-box model-based local thresholding |
| ootb_obia | Out-of-the-box object-based image analysis of canopy photographs |
| ootb_sky_reconstruction | Out-of-the-box sky reconstruction |
| polar_qtree | Quad-tree segmentation in the polar space |
| qtree | Quad-tree segmentation |
| rcaiman | rcaiman: An R package for CAnopy IMage ANalysis |
| read_bin | Read binarized images |
| read_caim | Read a canopy image from a file |
| read_manual_input | Read manual input |
| read_opt_sky_coef | Read optimized sky coefficients |
| regional_thresholding | Regional thresholding |
| reproject_to_equidistant | Fisheye to equidistant |
| rings_segmentation | Rings segmentation |
| row_col_from_zenith_azimuth | Row and col numbers from zenith and azimuth angles |
| sectors_segmentation | Sectors segmentation |
| sky_grid_segmentation | Sky grid segmentation |
| test_lens_coef | Test lens projection functions |
| thr_image | Threshold image |
| thr_isodata | Threshold calculated with the isodata method |
| write_bin | Write binarized images |
| write_caim | Write canopy image |
| write_sky_points | Write sky points |
| write_sun_coord | Write sun coordinates |
| zenith_azimuth_from_row_col | Zenith and azimuth angles from row and col numbers |
| zenith_image | Zenith image |