I am doing a project on hand vein authentication.I am currently stuck up with matching .i have the pseudo code which i got from a paper but i don't know how to implement it.Here is the pseudocode

H <- 0 n <-0 initialize Image1 initialize Image2

for all WhitePixel in Image1 do n+ = 1 d findNearestNeighbour(WhitePixel; Image2)) if d= 20 then H+ = 20 else H+ = d end if end for H/ = n