[Insight-users] about initial level set

[Michal Postrozny]

Hello Luis,

After setting intensity of -1 for the segmented object (inside) and 1 for
background (outside) everything works fine. Sorry for bothering you.

Regards

Michal Postrozny

> Hello Luis,

> You have said that there is no need to do anything with the binary
> image, just feed it to the level set filter. I've tried to feed binary
> image with intensities of 255 for segmented object and zero for
> background to the GeodesicActiveContourLevelSetImageFilter. But this
> doesn't work. I must be missing something important. After applying
> ApproximateSignedDistanceMapImageFilter to the binary image and
> feeding it to the geodesic everything works fine. But
> ApproximateSignedDistanceMapImageFilter is rather slow, so if it was
> possible to feed binary image directly to geodesic it would be great.
> How can I achieve this?

> Thanks in advance

> Michal Postrozny




>> Yixun,


>> Don't need to do anything particular.

>> You can feed your binary image directly as input level set.


>> Regards,


>>     Luis


>> ----------------
>> Yixun Liu wrote:

>>> Hi,
>>>  
>>> I have a  segmented image represented by binary image. I want to use
>>> level set to refine the segmentation based on the segmented image. How
>>> to generate a initial level set based on this binary image?
>>>  
>>> Best regards,
>>>  
>>> Yixun Liu
>>> 
>>> 
>>> ------------------------------------------------------------------------
>>> 
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