[Insight-users] Split and Merge segmentation.

[Dženan Zukić]

As far as I know, it does not have such a "function". However it has ways
to represent image (segmentation) at all steps of your algorithm.
http://www.itk.org/Doxygen/html/classitk_1_1LabelMap.html
http://www.insight-journal.org/browse/publication/176 (read the pdf)


On Sat, Jul 13, 2013 at 4:02 PM, NicholasChoy <ghost_choy at hotmail.com>wrote:

> What i mean from split and merge segmentation function,
>
> Split function.
> Is to develop a algorithm that recursively split regions into four
> sub-regions (starting with the whole image as one region)(Like a Quadtree)
> until our homogeneity criterion is met in all sub-regions.
>
> (For any region Ri, which P(Ri) = False , we split it into four disjoint
> quadrants.)
>
> One idea of the homogeneity criterion is using the "mean" of the regions
> and
> comparing each mean of the four sub-regions, if the difference is too far
> from the specified value. It keeps going until it either reaches 1 pixel or
> the mean difference is within the specified value range.
>
> Merge function.
> After process of splitting, merging process is to merge two adjacent
> regions.
> When no further splitting is possible, merge any adjacent regions Rj and Rk
> for which P(Rj U Rk) = True.
> Stop only if no further merging is possible.
>
>
>
>
> --
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