[Insight-users] Seeded watershed

[van de Giessen]

Dear all,

For my research I've developed a segmentation algorithm that uses a
seeded watershed. This algorithm is now in Matlab, but I want to speed
it up, using ITK.

Such a seeded watershed uses a number of labeled seeds (+/- 15 in my
case) and performs a watershed. The merging of the basins is as follows:
The original seeds never merge. As soon as the region within a basin
adjacent to one of the seeds touches the region of the seed, it is
merged with the region of the seed. In this way the whole image is
segmented in the same number of regions as the number of seeds.

I cannot find such a filter. Do I overlook something? Is it possible to
build such a filter efficiently from other existing filters or do I have
to derive a filter from the watershed image filter myself?

Thanks,

Martijn