Key Technologies of Steel Plate Surface Defect Detection System Based on Artificial Intelligence Machine Vision

Table 3

Defect image texture feature extraction table.

Defect sample	Crack	Hole	Bruise	Oily	Inclusion
Energy	0.9547	0.9491	0.8798	0.9736	0.8473
Mean gray value	0.0278	0.0121	0.0372	0.0232	0.1422
Gray mean square error	0.3312	0.0378	0.6208	0.3564	1.0381
Gradient mean	0.1639	0.0761	0.3942	0.1536	0.2010
Gradient mean square error	2.6790	0.9712	4.0097	2.7180	4.9014
Gray entropy	0.0540	0.0166	0.0719	0.0794	0.0359
Gradient entropy	0.0534	0.0154	0.0565	0.0670	0.1673
Mixed entropy	0.0796	0.0165	0.1185	0.1786	0.1451