cropping threshold
cropping-threshold 100
fmax 0.2
gvf-mu 0.05
large-blur 2
max-distance 20
maximum 200
min-scan-lines-threshold 200
min-tree-length 30
minimum 100
radius-max 30
radius-min 1
radius-step 0.5
small-blur 1
use-spline-tdf
