Table 2.

Quantitative results for evaluation metrics on the “Bright cell” image with four other methods.

	QMI	QNCIE	QG	QP	QCB	PSNR	SSIM
DWT	1.8902	0.9074	0.9630	0.9547	0.9629	43.7463	0.9860
Quad-tree	1.8083	0.9007	0.9593	0.9372	0.9467	42.8896	0.9856
GFDF	1.5250	0.8818	0.8919	0.8816	0.5276	43.3569	0.9874
Ours	1. 9182	0. 9098	0.96 52	0.9 578	0.9815	44.3206	0.9870