In the application of image analysis on mineral
particles, a study by Hagerman et al. (1980) treats
more or less the same properties as in this study.
However, the technique and the definitions of the
shape parameters differ. For example, the particles
are spread manually on glass and the measure-
ments of sharpness and roughness were only measured on particles larger than 0.5 mm. Some of their conclusions are pointing in the same direction