Figure 2
From: Quantification of floating riverine macro-debris transport using an image processing approach

Scatterplots of the covered area (a,c) and transport velocity (b) calculated by our algorithm versus those measured by the observers. Panels (a) and (c) show the comparison of the covered areas obtained in the laboratory and river experiments, respectively. Panel (b) shows the comparison between the transport velocities measured by a stopwatch and calculated via image processing. The line y = x is added to each panel.