Table 2.

Image data used for Mask R-CNN training and validation

Dataset	Training images	As a % of dataset	Val. images	Avg. stomata/image
Gymnosperm 40×	43	15.14%	14	6
Gymnosperm 10×	25	4.99%	16	27
Cuticle	28	4.20%	19	32
Ginkgo	15	7.61%	10	10
USNM/USBG	31	4.44%	30	26
Poplar	15	8.50%	10	33
Total	157	−	99	-