Postprocessing of Edge Detection Algorithms with Machine Learning Techniques

Table 2

Statistical differences between methods.

	Log > sobel	RF > sobel	RN > sobel	RF > Log	RN > Log	RN > RF
Number of images with superiority	166	182	193	171	191	146
Percentage of superiority	83.0%	91.0%	96.5%	85.5%	95.5%	73.0%
Probability (significance)	0.000	0.000	0.000	0.000	0.000	0.000

Bold values represent the significant p-values.