Medical Image Fusion Algorithm Based on Nonlinear Approximation of Contourlet Transform and Regional Features

Table 6

Index of performance evaluation.

	Standard deviation	Correlation coefficients	Entropy	Mutual information	Running time
Wavelet fusion	44.97	0.73	5.78	4.80	2.805
Haar fusion	49.72	0.76	5.88	4.95	2.932
Contourlet fusion	51.26	0.80	6.35	5.42	4.921
Nonsubsampled contourlet fusion	59.06	0.88	6.60	5.67	10.594
Nonlinear contourlet fusion	52.33	0.82	6.42	5.44	1.824