Table 2. Comparison with related works.

Author	Method	Edge	Mean Absolute Error
			Mean	Std
[14]	RNN-GS	ILM	0.38	0.92
		RPE	1.05	2.91
		BM	2.07	4.31
[14]	CNN-GS	ILM	1.10	7.21
		RPE	1.17	3.15
		BM	2.31	4.60
[14]	FCN-GS	ILM	0.65	4.24
		RPE	1.03	2.97
		BM	1.53	3.50
[15]	CapsNet	ILM	0.75	3.42
		RPE	0.93	0.86
		BM	1.09	2.49
[17]	DeepForest	ILM	0.47	0.12
		RPE	0.99	0.48
		BM	1.24	0.52
[18]	WAVE	ILM	0.68	4.09
		RPE	1.22	2.80
		BM	1.90	3.01
proposed method	DexiNed	ILM	0.49	0.09
		RPE	0.57	0.07
		BM	0.66	0.12