What is the algorithm that runs matlabs bwmorph spur function?

i am investigating matlabs bwmorph spur function and need to find which algorithm runs the function. thanks

Answer 1

[DGM]

See line 262 in $MLROOT/toolbox/images/images/+images/+internal/algbwmorph.m

See $MLROOT/toolbox/images/images/+images/+internal/lutspur.m

and familiarize yourself with the usage of bwlookup().