Parameter Description Value
Normalization radius
Strength of the maximum sliding filter, expressed as the search radius in pixels. A smaller value concentrates on small-scale features. A larger value conserves global structures.
75 pixels
Reduce pixel noise Denoising filter with a certain smoothing radius weak
Binarization threshold The percentage intensity level of the normalized image at which the intensity is split between black (=shadow) and white (=background). 50 %
Minimum shadow area The minimum number of pixels the particle shadow must contain to be accepted in the list. 25 pixels
Minimum slope
A filter for the minimum sharpness of the image, defined as the relative drop of intensity (=slope) at the particle rim.
3 %