Table 2.
Image features set investigated in this study.
| A. GLCM (19 features) | … | 2. A12 (Contrast) |
| 1. G1 (Energy) | 59. L59 (Frequency of 58th bin of ULBP) | 3. A13 (Correlation) |
| 2. G2 (Contrast) | 60. L60 (Frequency of 0th bin of RI-LBP) | 4. A14 (Sum of squares) |
| 3. G3 (Correlation) | 61. L61 (Frequency of 1st bin of RI-LBP) | 5. A15 (Inverse difference moment) |
| 4. G4 (Sum of squares) | … | 6. A16 (Sum average) |
| 5. G5 (Inverse difference moment) | 69. L69 (Frequency of 9th bin of RI-LBP) | 7. A17 (Sum variance) |
| 6. G6 (Sum average) | 70. L70 (Standard deviation (SD) of ULBP) | 8. A18 (Entropy) |
| 7. G7 (Sum variance) | 71. L71 (Skewness of ULBP) | 9. A19 (Difference variance) |
| 8. G8 (Entropy) | 72. L72 (Kurtosis of ULBP) | 10. A110 (Sum entropy) |
| 9. G9 (Difference variance) | 73. L73 (Entropy of RI-ULBP) | 11. A111 (Difference entropy) |
| 10. G10 (Sum entropy) | 74. L74 (SD of RI-ULBP) | 12. A112 (Information-theoretic |
| 11. G11 (Difference entropy) | 75. L75 (Skewness of RI-ULBP) | measures of correlation 1) |
| 12. G12 (Information-theoretic measures of correlation 1) | 76. L76 (Kurtosis of RI-ULBP) | 13. A113 (Information-theoretic measures of correlation 2) |
| 13. G13 (Information-theoretic measures of correlation 2) | 77. L77 (Entropy of RI-ULBP) | |
| 14. G14 (Maximum correlation coefficient) | 78. L78 (SD of LBP) | 14. A114 (Maximum correlation coefficient) |
| 15. G15 (Inertia) | 79. L79 (Skewness of LBP) | 15. A115 (Inertia) |
| 16. G16 (Cluster shade) | 80. L80 (Kurtosis of LBP) | 16. A116 (Cluster shade) |
| 17. G17 (Cluster prominence) | 81. L81 (Entropy of LBP) | 17. A117 (Cluster prominence) |
| 18. G18 (Renyi entropy) | 82. L82 (SD of RI-LBP) | 18. A118 (Renyi entropy) |
| 19. G19 (Tsallis entropy) | 83. L83 (Skewness of RI-LBP) | 19. A119 (Tsallis entropy) |
| B. RLM (11 features) | 84. L84 (Kurtosis of RI-LBP) | G. ACM2 (19 features) |
| 1. R1 (Short run emphasis) | 85. L85 (Entropy of RI-LBP) | 1. A21 (Energy) |
| 2. R2 (Long run emphasis) | 86. L86 (SD of rotated LBP) | 2. A22 (Contrast) |
| 3. R3 (Gray-level nonuniformity) | 87. L87 (Skewness of LBP) | 3. A23 (Correlation) |
| 4. R4 (Run length nonuniformity) | 88. L88 (Kurtosis of LBP) | 4. A24 (Sum of squares) |
| 5. R5 (Run percentage) | 89. L89 (Entropy of LBP) | 5. A25 (Inverse difference moment) |
| 6. R6 (Low gray-level run emphasis) | 90. L90 (0th frequency coefficient of RI-ULBP Fourier spectrum | 6. A26 (Sum average) |
| 7. R7 (High gray-level run emphasis) | … | 7. A27 (Sum variance) |
| 8. R8 (Short run low gray-level emphasis) | 127. L127 (37th frequency coefficient of RI-ULBP Fourier Spectrum | 8. A28 (Entropy) |
| 9. R9 (Short run high gray-level emphasis) | E. FD (48 features) | 9. A29 (Difference variance) |
| 10. R10 (Run low gray-level emphasis) | 1. F1 (FD from 1st binary image from SFTA | 10. A210 (Sum entropy) |
| 11. R11 (Long run high gray-level emphasis) | … | 11. A211 (Difference entropy) |
| C. IH (5 features) | 16. F16 (FD from 16th binary image from SFTA | 12. A212 (Information-theoretic measures of correlation 1) |
| 1. I1 (Mean) | 17. F17 (Mean gray value from 1st binary image from SFTA) | |
| 2. I2 (Standard deviation) | … | 13. A213 (Information-theoretic measures of correlation 2) |
| 3. I3 (Skewness) | 32. F32 (Mean gray value from 16th binary image from SFTA) | 14. A214 (Maximum correlation coefficient) |
| 4. I4 (Kurtosis) | 33. F33 (Pixel count from 1st binary image from SFTA) | 15. A215 (Inertia) |
| 5. Entropy | … | 16. A216 (Cluster shade) |
| D. LBP (127 features) | 48. F48 (Pixel count from 16th binary image from SFTA) | 17. A217 (Cluster prominence) |
| 1. L1 (Frequency of 0th bin of ULBP) | F. ACM1 (19 features) | 18. A218 (Renyi entropy) |
| 2. L2 (Frequency of 1st bin of ULBP) | 1. A11 (Energy) | 19. A219 (Tsallis entropy) |