| DICOM_codes | rda containing DICOM header codes to include in _RIA_image_ object |
| discretize | Discretizes RIA image to a given number of bins |
| first_order | Calculates first-order statistical metrics for RIA_image |
| geometry | Calculates geometry-based parameters of RIA image |
| glcm | Creates gray-level co-occurrence matrix of RIA image |
| glcm_all | Creates gray-level co-occurrence matrix of all possible directions of a RIA image |
| glcm_stat | Calculates GLCM-based statistics |
| glcm_stat_all | Aggregates GLCM-based statistics based-on supplied function |
| glrlm | Creates gray-level run length matrix from RIA image |
| glrlm_all | Creates gray-level run length matrix of all possible directions of a RIA image |
| glrlm_stat | GLRLM-based statistics |
| glrlm_stat_all | Aggregates GLRLM-based statistics based-on supplied function |
| load_dicom | Loads DICOM images to RIA image format |
| load_nifti | Loads NIfTI images to RIA image format |
| load_npy | Loads npy files to RIA image format |
| load_nrrd | Loads nrrd images to RIA image format |
| Non_NRS | _RIA_image_ object of a plaque without the napkin-ring sign |
| NRS | _RIA_image_ object of a plaque with the napkin-ring sign |
| radiomics_all | Calculates all radiomic statistics on supplied RIA_image |
| save_RIA | Export radiomics calculations of RIA image to csv |