Table 2.
Texture features and abbreviations.
| Histogram-derived | GLCM | GLRLM | GLSZM |
|---|---|---|---|
| Variance | Contrast | Short run emphasis (SRE) | Small zone emphasis (SZE) |
| Skewness | Correlation | Long run emphasis (LRE) | Large zone emphasis (LZE) |
| Kurtosis | Energy | Gray-level non-uniformity (GLN) | Gray-level non-uniformity (GLN) |
| Entropy | Homogeneity | Run length non-uniformity (RLN) | Zone-size non-uniformity (ZSN) |
| Run percentage (RP) | Zone percentage (ZP) | ||
| Low gray-level run emphasis (LGRE) | Low gray-level zone emphasis (LGZE) | ||
| High gray-level run emphasis (HGRE) | High gray-level zone emphasis (HGZE) | ||
| Short run low gray-level emphasis (SRLGE) | Small zone low gray-level emphasis (SZLGE) | ||
| Short run high gray-level emphasis (SRHGE) | Small zone high gray-level emphasis (SZHGE) | ||
| Long run low gray-level emphasis (LRLGE) | Large zone low gray-level emphasis (LZLGE) | ||
| Long run high gray-level emphasis (LRHGE) | Large zone high gray-level emphasis (LZHGE) | ||
| Gray-level variance (GLV) | |||
| Zone size variance (ZSV) | |||
GLCM, gray-level co-occurrence matrix; GLRLM, gray-level run-length matrix; GLSZM, gray-level size-zone matrix.