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Subkey              Description                                                                                        
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shape               Determine whether orientation features are computed or not.                                        
histogram           Determine whether histogram features are computed or not.                                          
orientation         Determine whether orientation features are computed or not.                                        
texture_Gabor       Determine whether Gabor texture features are computed or not.                                      
texture_LBP         Determine whether LBP texture features are computed or not.                                        
texture_GLCM        Determine whether GLCM texture features are computed or not.                                       
texture_GLCMMS      Determine whether GLCM Multislice texture features are computed or not.                            
texture_GLRLM       Determine whether GLRLM texture features are computed or not.                                      
texture_GLSZM       Determine whether GLSZM texture features are computed or not.                                      
texture_NGTDM       Determine whether NGTDM texture features are computed or not.                                      
coliage             Determine whether coliage features are computed or not.                                            
vessel              Determine whether vessel features are computed or not.                                             
log                 Determine whether LoG features are computed or not.                                                
phase               Determine whether local phase features are computed or not.                                        
image_type          Modality of images supplied. Determines how the image is loaded.                                   
gabor_frequencies   Frequencies of Gabor filters used: can be a single float or a list.                                
gabor_angles        Angles of Gabor filters in degrees: can be a single integer or a list.                             
GLCM_angles         Angles used in GLCM computation in radians: can be a single float or a list.                       
GLCM_levels         Number of grayscale levels used in discretization before GLCM computation.                         
GLCM_distances      Distance(s) used in GLCM computation in pixels: can be a single integer or a list.                 
LBP_radius          Radii used for LBP computation: can be a single integer or a list.                                 
LBP_npoints         Number(s) of points used in LBP computation: can be a single integer or a list.                    
phase_minwavelength Minimal wavelength in pixels used for phase features.                                              
phase_nscale        Number of scales used in phase feature computation.                                                
log_sigma           Standard deviation(s) in pixels used in log feature computation: can be a single integer or a list.
vessel_scale_range  Scale in pixels used for Frangi vessel filter. Given as a minimum and a maximum.                   
vessel_scale_step   Step size used to go from minimum to maximum scale on Frangi vessel filter.                        
vessel_radius       Radius to determine boundary of between inner part and edge in Frangi vessel filter.               
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