Usage: ptcurve in.pgm connex out.pgm
Description: An curve point is a white point, which has exactly 2 white n-neighbours that are not n-neighbours to each other. In other words, Tn = 2 and each neighboring n-connected component is made of exactly one point (n = 4, 8 (2d) or 6, 18, 26 (3d), as set by the parameter connex)
Types supported: byte 2d, byte 3d
Category: topobin
1.2.18