Table 9 Percentile values of the texture features and statistical analysis for normal (N = 209) vs abnormal (N = 209) ROIs of the endometrium extracted from 40 subjects. Statistical analysis was carried out after gamma correction but also between the normal/abnormal ROIs before and after gamma correction at a ≤ 0,05.
From: A standardised protocol for texture feature analysis of endoscopic images in gynaecological cancer
Normal ROIs | Abnormal ROIs | Normal vs Abnormal ROIs | Original vs Corrected Images For Normal ROIs | Original vs Corrected Images For Abnormal ROIs | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
P5% | P25% | P50% | P75% | P95% | P5% | P25% | P50% | P75% | P95% | H | H | H | |
SF | |||||||||||||
Mean | 110,11 | 138,44 | 156,06 | 173,91 | 204,36 | 98,48 | 129,37 | 144,65 | 170,48 | 206,06 | 1 | 1 | 1 |
Variance | 13,23 | 29,44 | 54,63 | 127,94 | 286,63 | 31,33 | 66,9 | 124,39 | 223,33 | 492,3 | 1 | 1 | 1 |
Median | 110,18 | 138,83 | 156,44 | 174,42 | 203,53 | 98,2 | 127,92 | 143,75 | 171,43 | 207,7 | 1 | 1 | 1 |
Mode | 109,95 | 135,75 | 156 | 175 | 201,05 | 98 | 124 | 146,5 | 176 | 211,4 | 1 | 1 | 1 |
Skewness | -1,01 | -0,46 | -0,14 | 0,12 | 0,56 | -1,14 | -0,47 | -0,14 | 0,18 | 0,62 | 0 | 0 | 0 |
Kurtosis | 1,94 | 2,26 | 2,64 | 3,09 | 4,39 | 1,82 | 2,24 | 2,62 | 3,16 | 4,85 | 0 | 0 | 0 |
Energy | 0,02 | 0,03 | 0,04 | 0,06 | 0,09 | 0,02 | 0,02 | 0,03 | 0,04 | 0,06 | 1 | 1 | 1 |
Entropy | 2,66 | 3,02 | 3,34 | 3,68 | 4,09 | 3,11 | 3,44 | 3,74 | 3,99 | 4,32 | 1 | 1 | 1 |
SGLDM | |||||||||||||
Contrast | 2,54 | 3,1 | 3,82 | 4,87 | 12,27 | 2,55 | 4,82 | 7,04 | 10,99 | 21,94 | 1 | 1 | 1 |
Correlation | 0,85 | 0,93 | 0,96 | 0,98 | 0,99 | 0,91 | 0,95 | 0,97 | 0,98 | 0,99 | 1 | 1 | 0 |
Variance | 13,02 | 28,83 | 53,97 | 126,41 | 284,3 | 30,89 | 65,53 | 120,85 | 221,38 | 488,55 | 1 | 1 | 1 |
Homogeneity | 0,37 | 0,45 | 0,48 | 0,5 | 0,53 | 0,31 | 0,38 | 0,42 | 0,46 | 0,53 | 1 | 1 | 1 |
Entropy | 4,47 | 4,93 | 5,31 | 5,78 | 6,28 | 5,01 | 5,49 | 5,93 | 6,28 | 6,65 | 1 | 1 | 1 |
GLDS | |||||||||||||
Homogeneity | 0,37 | 0,45 | 0,48 | 0,5 | 0,53 | 0,31 | 0,38 | 0,42 | 0,46 | 0,53 | 1 | 1 | 1 |
Contrast | 2,54 | 3,09 | 3,81 | 4,86 | 12,24 | 2,55 | 4,81 | 7,03 | 10,97 | 21,89 | 1 | 1 | 1 |
Energy | 0,17 | 0,24 | 0,25 | 0,27 | 0,3 | 0,14 | 0,18 | 0,21 | 0,24 | 0,3 | 1 | 1 | 1 |
Entropy | 1,37 | 1,45 | 1,54 | 1,64 | 2 | 1,37 | 1,63 | 1,77 | 1,96 | 2,24 | 1 | 1 | 1 |
Mean | 1,18 | 1,33 | 1,44 | 1,63 | 2,45 | 1,19 | 1,62 | 1,89 | 2,31 | 3,16 | 1 | 1 | 1 |