File list (Check if you may need any files):
Polar FFT\AFTUSF_NGP_1.m
.........\AFTUSF_Spline_1.m
.........\APPFFT.m
.........\A_Content.m
.........\Bilinear_Interp_Matrix.m
.........\Brute_Force_Transform.m
.........\Cartesian_2_Polar.m
.........\Compare_Bilinear_Interpolations.m
.........\Comparison_1_USFT_vs_Polar.m
.........\Comparison_2_USFT_vs_Polar.m
.........\Comparison_3_USFT_vs_Polar.m
.........\Comparison_4_Polar_Corner.m
.........\Create_Figures_For_paper.m
.........\Create_Grid.m
.........\Create_Oversampled_Grid.m
.........\Debug_interp_SPLINE.m
.........\Debug_XPolar_FFT.m
.........\Disk_Relative_Energy.m
.........\Distance_from_Grid.m
.........\Distinct.m
.........\Error_Analysis_1.m
.........\Error_Analysis_2.m
.........\Error_Analysis_3.m
.........\Example_Image1.jpg
.........\Figure001.eps
.........\Figure002.eps
.........\Figure003.eps
.........\Figure005.eps
.........\Figure009.eps
.........\Figure010.eps
.........\Figure011.eps
.........\Figure012.eps
.........\Figure013.eps
.........\Figure016.eps
.........\Grid_Evolution.m
.........\interp_SPLINE.m
.........\IPPFFT.m
.........\lena.tif
.........\My_FRFT.m
.........\My_FRFT_Centered.m
.........\PFFT.m
.........\Polar_Transform_New.m
.........\PPFFT.m
.........\Pseudo_Polar_Evolution.m
.........\Ray_Behavior.m
.........\RectoPolar_Trans_Adjoint.m
.........\RectoPolar_Trans_New.m
.........\SPolar_Transform.m
.........\Test_FRFT.m
.........\Transform_Matrix.m
.........\XPolar_Transform.m
Polar FFT