[Insight-users] Rescale label image

[Bill Lorensen]

Just try it

On Tue, Jun 12, 2012 at 3:04 PM, Dženan Zukić <dzenanz at gmail.com> wrote:
> 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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>>
>>
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>> Unpaid intern in BillsBasement at noware dot com
>
>



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