cout << " abs_hamming Abs * Hamming" << endl;
cout << " shepp Shepp-Logan" << endl;
cout << " bandlimit Bandlimiting" << endl;
cout << " sinc Sinc" << endl;
cout << " abs_hamming Abs * Hamming" << endl;
cout << " shepp Shepp-Logan" << endl;
cout << " bandlimit Bandlimiting" << endl;
cout << " sinc Sinc" << endl;