Airborne Infrared and Visible Image Fusion for Target Perception Based on Target Region Segmentation and Discrete Wavelet Transform

Table 1

Evaluation metrics of different image fusion methods.

Fusion method	Entropy	Mutual information	Edge preservation
Weighted average	4.4058	0.9521	0.4152
Principal component analysis	6.1254	1.3214	0.7124
Laplacian pyramid	6.3547	1.4521	0.7457
Gradient pyramid	5.9687	1.3542	0.7012
Contrast pyramid	6.3142	1.4217	0.7315
Discrete wavelet transform	6.5214	1.4754	0.7462
Our fusion method	6.5321	1.5531	0.8213