[Vv] clitkRegionGrowing

Benoît Presles benoit.presles at u-bourgogne.fr
Tue Apr 2 10:22:07 CEST 2019


Hello Thomas,

Thanks for your reply. Indeed if I set -r to a lower value I get better 
results.

Thanks for your help,
Best regards,
Ben


Le 28/03/2019 à 09:56, Thomas BAUDIER a écrit :
>
> Hi Benoit,
>
> With the option t=1, the algorithm uses NeighborhoodConnectedImageFilter:
> https://itk.org/Doxygen/html/classitk_1_1NeighborhoodConnectedImageFilter.html 
>
>
> If I understand correctly the documentation, to be labeled, a voxel 
> has to be connected to the seed AND all its neighbor voxels (defined 
> by the radius option) also.
> So If your output correspond to the seed, maybe your radius (-r 10) is 
> too high. By default it's 1 but you can try with 0 and other value 
> between 0 and 10.
>
> Regards
> Thomas
>
>
> On 2019-03-23 16:40, Benoît Presles wrote:
>> Dear vv users,
>>
>> I have tried to use the clitkRegionGrowing tool with the -t 1 option
>> (neighborhood-threshold algorithm) but I did not manage to make it
>> work.
>>
>> With the -t 0 option (threshold algorithm) everything seems to work
>> well but when I switch to -t 1 (-t 1 -r 10), the result is a seed
>> image. Do I have to set other options ?
>>
>>
>> Thanks for your help,
>> Best regards,
>> Ben
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