A Novel Image Edge Detection Method Based on the Asymmetric STDP Mechanism of the Visual Path

Table 2

Information entropy value of edge image under various detection algorithms.

Image	Method
	Sobel	Log	PCNN	Gabor	Proposed
Colony 1	0.6010	0.6892	0.5523	0.7185	0.7309
Colony 2	0.5801	0.6217	0.6168	0.5800	0.7763
Colony 3	0.9652	0.9857	0.9792	0.8540	0.9862