Research on Coal and Rock Type Recognition Based on Mechanical Vision

Table 6

Morphological parameter test.

Statistical value	Area (mm^2)	Circumference (mm)	Long axis (mm)	Short axis (mm)	Roundness	Rectangularity
Average value	3116.581	231.4936	76.33752	52.39887	0.644344	0.779145
Variance	0.398359	0.028122	0.000318	0.000168	0.000171	0.000306
Standard deviation	0.631157	0.167696	0.005642	0.012968	0.000131	0.000175
Range	2.51	0.586	0.0256	0.0336	0.00052	0.000622