Fig. 5From: SpykProps: an imaging pipeline to quantify architecture in unilateral grass inflorescencesSpike shape reconstruction using Fourier series with different numbers of harmonics (n). A n = 1, B n = 10, C n = 30, D n = 81 (optimal), and E n = 100. The shape of the spike is outlined in black, and the outline approximation is fitted in redBack to article page