Fig. 2From: Automatic rape flower cluster counting method based on low-cost labelling and UAV-RGB imagesGeographical location and UAV remote sensing image mosaic map of the study area. a Location of the study area in Asia. b Location of the experimental area in Wuhan City. c Stitching map of UAV images in the experimental area. d Enlarged images of oilseed rape images in some plotsBack to article page