Classification of Region of Interest in Mammograms Using Dual Contourlet Transform and Improved KNN

Table 4

Classification accuracy (%) of different methods tested between normal and abnormal.

Accuracy	Improved KNN			KNN
	Dual-CT	Contourlet	Wavelet	Dual-CT	Contourlet	Wavelet
Mean	93.21	91.98	90.12	82.72	75.00	78.40
SD	93.52	93.21	91.67	81.17	75.93	78.70
Smoothness	93.83	91.05	89.51	81.79	79.63	80.56
Skewness	92.90	89.81	88.89	81.48	75.00	75.62
Uniformity	93.52	93.21	92.28	77.47	79.01	78.09
Entropy	94.14	93.52	93.52	79.83	76.85	75.62
Contrast	90.74	93.52	92.90	78.09	76.54	75.31
Correlation	93.83	92.28	88.27	83.02	77.78	78.80
Homogeneity	92.90	93.83	92.59	81.17	76.85	76.85

SD represents standard deviation; bold font number indicates the best performance in each class.