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

Table 6

Classification accuracy (%) of different methods tested between benign and malignant.

Accuracy	Improved KNN			KNN
	Dual-CT	Contourlet	Wavelet	Dual-CT	Contourlet	Wavelet
Mean	91.53	91.53	87.29	76.27	78.81	81.36
SD	93.22	88.14	85.59	76.27	71.19	75.42
Smoothness	95.76	88.98	83.05	70.34	77.12	77.97
Skewness	90.68	86.44	87.29	72.03	77.97	75.42
Uniformity	94.92	88.98	83.90	75.42	74.58	77.12
Entropy	90.68	88.98	86.44	67.80	77.97	76.27
Contrast	95.76	87.29	86.44	75.42	75.42	72.03
Correlation	91.53	86.44	86.44	76.27	78.81	80.51
Homogeneity	94.92	88.14	81.36	76.27	72.88	72.88

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