Fig. 7
From: Computer vision and machine learning enabled soybean root phenotyping pipeline
a Mean boundary based on five harmonic Fourier descriptors of genotypes A (PI 417,138) (left), B (PI 643,146) (middle), and C (PI 479718B) (right) at 6 days (green), 9 days (black), 12 days (red). b Convex hull boundary of root shape developed from Fourier analysis (five harmonic descriptors) of the three genotypes at 6 days (green), 9 days (black), 12 days (red) (n = 14)