A New GLLD Operator for Mass Detection in Digital Mammograms

Table 7

Obtained 𝐴_𝑧 values (ratio 1/3) of the classification of masses according to the ROI image sizes. The final column illustrates the mean 𝐴_𝑧 value. Size 1 to size 6 correspond to the different ROIs image sizes, from smaller to bigger one.

𝐴𝑧
Method	Size 1	Size 2	Size 3	Size 4	Size 5	Size 6	Mean
Oliver et al. [8]	0.53	0.7	0.7	0.68	0.72	0.83	0.7
Oliver at al. [9]	0.81	0.83	0.87	0.84	0.89	0.93	0.86
GLLD^riu224,3 + ANN	0.98	0.99	0.97	0.92	0.9	0.93	0.94