Usage: volumelignes skel.pgm orig.pgm connex radius out.pgm
Description: Enhances linear structures in a grayscale image. The algorithm is the following:
Let F be the original image ("orig.pgm")
Let O be the final result ("out.pgm")
Let r be the value of parameter "radius"
Compute k iterations of homotopic thinning, result S ("skel.pgm")
For each point x of S which is separating
O(x) = volume((F-S).Br(x))
where Br(x) is the disc centered on x with radius r
EndFor
References:
"Topological operators for the detection of curvilinar structures in grayscale images", in preparation, 2003.
Types supported: byte 2d
Category: topogray
1.2.18