Comparison in filling height of fine granular basalt: (a) in 1 g ≈10 · 10³ mm s⁻², (b) fully settled in 750 mm s⁻². Both images have the normalized brightness of pixel rows plotted in, as shown in Figure 7. Please note that these graphs do not represent the borders of an object recognition software; they show the brightness of the pixel row, so the farther to the right the graph is, the brighter that pixel row is.