An Improved NMS-Based Adaptive Edge Detection Method and Its FPGA Implementation

Table 5

Comparison of the positive rate.

	True positive rate (%)	False positive rate (%)
Roberts operator	31.26	1.02
Prewitt operator	34.08	0.58
Sobel operator	32.73	0.53
LoG operator	26.83	2.39
Canny operator	45.17	5.2
Proposed method	48.16	1.19