Extensions
Extension
1: Use the image gradient
1.same
2.for each edge point I[x,y] in the image
compute unique
(d, q) based on image gradient at (x,y)
H[d, q] += 1
3.same
4.same
What’s the
running time measured in votes?
Extension
2
•give more votes for stronger edges
Extension
3
•change the sampling of (d, q) to give more/less resolution
Extension
4
•The same procedure can be used with circles, squares, or
any other shape