Introduction - If you have any usage issues, please Google them yourself
these are function, you can find adjacent pixels of any pixel in a given image. three function are here in this attachment: "D adjacent", "4 adjacent" and "*8 adjacent".
format:"find_adjescent(matric,set,x,y)".
matric = image
set = set which you wanna check for adjacency
x,y = coordinates of pixel who s neighbors you wanna find out.
all other functions take the same input