Algorithms for Extracting Leaf Boundary Information from Digital Images of Plant Foliage

Algorithms were developed to extract edge segments along leaf margins in digitized scenes of weed seedlings. Edge segments were linked based on endpoint conditions to form closed boundaries of vegetative regions. Since boundaries represented regions of either single or multiple leaves, methods were developed to partition regions based on interior boundaries and finally produce boundaries of single leaves, either completely visible or partially occluded, suitable for shape identification.