Table 1.

Results of various cropping methods

Thresholds	Segmentation method	R2 of grain length	R2 of grain width	R2 of aspect ratio
Conf 0.45 IoU 0.8	Original size	0.77	0.33	0.77
Conf 0.5 IoU 0.75	Original size	0.77	0.33	0.77
Conf 0.8 IoU 0.8	Original size	0.86	0.27	0.77
	Padding 2 pixels	0.84	0.32	0.79
Conf 0.7 IoU 0.8	Original size	0.86	0.28	0.78
	Padding 2 pixels	0.84	0.33	0.79