Table 1.

Cross-entropy loss values for 10 sets of training images for a sorghum panicle detection and counting algorithm using a U-Net Convolutional Neural Networks model on unmanned aerial system images.

No. of Images	100	200	300	400	500	600	700	800	900	1000
Cross-entropy loss	0.71	0.66	0.63	0.59	0.53	0.50	0.39	0.34	0.20	0.11