Table 1 List of selected gray-level size zone matrix (GLSZM) texture features.
Feature name | ||
|---|---|---|
High gray level zone emphasis | \({HGLZE}=\,\frac{{\sum }_{i=1}^{{N}_{g}}{\sum }_{j=1}^{{N}_{s}}{{\bf{P}}}(i,j){i}^{2}}{{N}_{z}}\) | Distribution of the higher gray-level values |
Large area emphasis | \({LAE}=\,\frac{{\sum }_{i=1}^{{N}_{g}}{\sum }_{j=1}^{{N}_{s}}{{\bf{P}}}(i,j){j}^{2}}{{N}_{z}}\) | Distribution of large area size zones |
Small area emphasis | \({SAE}=\,\frac{{\sum }_{i=1}^{{N}_{g}}{\sum }_{j=1}^{{N}_{s}}\frac{{{\bf{P}}}(i,j)}{{j}^{2}}}{{N}_{z}}\) | Distribution of small size zones |
Gray level variance | \({GLV}=\,\mathop{\sum}\limits _{i=1}^{{N}_{g}}\mathop{\sum}\limits _{j=1}^{{N}_{s}}p(i,j){(i-\mu )}^{2}\) | Variance in gray level intensities for the zones |
Large area low gray level emphasis | \({LALGLE}=\,\frac{{\sum }_{i=1}^{{N}_{g}}{\sum }_{j=1}^{{N}_{s}}\frac{{{\bf{P}}}(i,j){j}^{2}}{{i}^{2}}}{{N}_{z}}\) | Proportion in the image of the joint distribution of larger size zones with lower gray-level values |
