Figure 8 GND density maps of EBSD data with 1 µm step size (instead of 0.5 µm) calculated from (a) raw orientations and (b)–(d) orientations filtered by the (b) MTEX mean filter, (c) MTEX smoothing splines with default calibration and (d) LLASS filter. The white dashed square (indicated by a black arrow) in (d) shows a dislocation structure slightly better preserved by the LLASS filter than by the MTEX mean filter and MTEX smoothing splines with default calibration.