Subjective Score Predictor: A New Evaluation Function of Distorted Image Quality
Table 6
The mean (deviation) statistics of DMOS and SSP scores for blur + JPEG.
Number
Blur level
SSP1
SSP2
JPEG level
DMOS
SSP1
SSP2
1
0
89.51 (4.36)
100 (0)
1
11.16 (4.12)
25.88 (1.26)
28.91 (0)
2
2
16.89 (4.52)
22.21 (1.08)
24.81 (0)
3
3
25.08 (8.35)
20.05 (0.98)
22.40 (0)
4
1
60.00 (2.93)
67.03 (0)
0
34.85 (9.16)
60.00 (2.93)
67.03 (0)
5
1
40.23 (7.07)
17.35 (0.85)
19.38 (0)
6
2
42.97 (7.13)
14.88 (0.73)
16.63 (0)
7
3
48.86 (8.15)
13.44 (0.66)
15.02 (0)
8
2
54.97 (2.68)
61.42 (0)
0
52.81 (8.69)
54.97 (2.68)
61.42 (0)
9
1
54.36 (6.39)
15.89 (0.77)
17.76 (0)
10
2
56.52 (6.93)
13.64 (0.67)
15.24 (0)
11
3
59.64 (7.55)
12.32 (0.6)
13.76 (0)
12
3
50.37 (2.46)
56.27 (0)
0
65.11 (7.25)
50.37 (2.46)
56.27 (0)
13
1
65.2 (6.34)
14.56 (0.71)
16.27 (0)
14
2
65.68 (7.03)
12.49 (0.61)
13.96 (0)
15
3
69.58 (6.71)
11.28 (0.55)
12.61 (0)
Average
61.99 (3.02)
69.26 (0)
ā
47.26 (7.03)
23.96 (1.17)
26.76 (0)
The source images: mean (DMOS) is 89.508; deviation is 4.3648. SSP1: using the MOS values in LIVE MD dataset as reference scores in formula (6). SSP2: setting reference scores in formula (6) as 100.