[Insight-users] Rescale label image

[Dženan Zukić]

I have also read that documentation, and looked at the methods of the class
in docs. However, I could not find anything which deals with sorting.

On Tue, Jun 12, 2012 at 6:14 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> /**
>  * \class RelabelComponentImageFilter
>  * \brief Relabel the components in an image such that consecutive
> labels are used.
>  *
>  * RelabelComponentImageFilter remaps the labels associated with the
>  * objects in an image (as from the output of
>  * ConnectedComponentImageFilter) such that the label numbers are
>  * consecutive with no gaps between the label numbers used.  By
>  * default, the relabeling will also sort the labels based on the size
>  * of the object: the largest object will have label #1, the second
>  * largest will have label #2, etc.
>  *
>  * Label #0 is assumed to be background is left unaltered by the
>  * relabeling.
> */
>
> On Tue, Jun 12, 2012 at 11:43 AM, Dženan Zukić <dzenanz at gmail.com> wrote:
> > I have an image containing labeled objects. The number of objects is
> about
> > 10. However object labels are not consecutive (1,2,3...) as I would like
> > them to be, but are scaled to 255.
> >
> > In case of 2 objects, labels would be 0(background), 127, 255.
> >
> > However ShiftScaleImageFilter does not seem a safe way to switch back.
> There
> > is  ChangeLabelImageFilter, but it sorts the labels by object size. Is
> there
> > a parameter to make this filter not sort labels? If not, what is the
> easiest
> > way to accomplish this?
> >
> >
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