Distortion estimators



IWT K_b = 4 pdf-based estimators


P	δ		D^sig	∆D^sig		D^ref	∆D^ref

3	0.355	118.319	113.321
2	0.415	29.087	27.806	5.214	3.934
1	0.45	6.248	5.798	1.292	0.842
0	0.0	1.0	1.0	0.45	0.45