Distortion estimators



DWT K_b = 7 pdf-based estimators


P	δ		D^sig	∆D^sig		D^ref	∆D^ref

6	0.306	7686.176	7432.682
5	0.366	2094.14	2016.805	253.494	170.69
4	0.401	544.81	524.441	77.335	55.939
3	0.426	139.703	134.495	20.37	15.012
2	0.446	35.577	34.261	5.208	3.871
1	0.462	9.024	8.693	1.317	0.983
0	0.475	2.283	2.2	0.331	0.248