Table 1.

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

	QMI	QNCIE	QG	QP	QCB	PSNR	SSIM
DWT	1.8534	0.8322	0.9513	0.9363	0.9558	47.3966	0.9851
Quad-tree	1.7286	0.8298	0.9346	0.9064	0.9318	45.5006	0.9811
GFDF	1.4601	0.8242	0.8040	0.8489	0.8436	47.7980	0.9868
Ours	1.8 796	0.8327	0.95 19	0.9354	0.9 726	47.4428	0.9854