Fig. 4
From: SpykProps: an imaging pipeline to quantify architecture in unilateral grass inflorescences
Assessment of the spikelet detection method included in SpykProps. A, B Output images from the spikelet_segm function where each color in A represents an approximated spikelet region, to which a numbered ellipse and its major axis line will be fitted (B). C Root mean squared error (RMSE) across minimum Euclidean distances in pixels expected between the center of a spikelet. D Scatterplots of the predicted (x-axis) versus observed (y-axis) number of spikelets per spike, with their Pearson correlation coefficient (R; p < 0.001)