[vtkusers] Help needed using segmented data

[Mathieu Malaterre]

Vidya,

	You really want to start with smaller example as a newbie. One thing to 
track down your mistake is to print the output of each filter to find 
out where the value you are passing is wrong.

filterName Update
puts [[filterName GetOutput] Print]

HTH
Mathieu
Ps: Sorry for the SetValues, I thought this was using the standart 
vtkContourFilter.

Vidya Raghavan wrote:
> 
> Also, to make things clearer... I use mean shift segmentation to segment 
> through a set of input 256X256 BMP files 
> http://www.cs.northwestern.edu/~vidya/VTK/input_images/.
> 
> The segmented data files 
> (http://www.cs.northwestern.edu/~vidya/VTK/data) have integer lables for 
> each pixel in the corresponding 256 X 256 images.
> 
> I am using these data files when I run region1.tcl
> 
> So, I'm not too sure what you mean by Value, and what i need to set it 
> to. I'll really appreciate your input.
> 
> Thanks again..
> 
> 
>> Vidya,
>>
>>     When you do the SetValue in vtkContourFilter, be sure that it is 
>> within the correct range (use GetScalarRange to find it).
>>
>> HTH
>> Mathieu
>>
>> Vidya Raghavan wrote:
>>
>>> Dear VTK users,
>>>
>>> I had posted this question earlier, but didn't get any response yet. 
>>> So, I'm reposting it. Hope someone can help me.
>>>
>>> Basically, I am trying to model segmented data in VTK, based on the 
>>> tutorial provided in:
>>>
>>> http://www.crd.ge.com/~lorensen/seg12/, where the input data is 
>>> described as "a set of slices that have the same resolution as the 
>>> original data, but grayscale values have been replaced with integer 
>>> segmentation labels.".
>>>
>>> There were some errors in the scripts as they used an older verison 
>>> of VTK. I now have these scripts working for VTK 4.2 and there are at 
>>> http://www.cs.northwestern.edu/~vidya/VTK/scripts
>>>
>>> Now I am trying to use my own segmented data with the above scripts, 
>>> where they represent 256 X 256 segmented data, with each pixel 
>>> represented by an integer.
>>>
>>> The segmented data I have used is at: 
>>> http://www.cs.northwestern.edu/~vidya/VTK/data
>>>
>>> The script I have written to describe these parameters is region1.tcl
>>>
>>> When I run region1.tcl I should get a vtk file region1.vtk. Instead 
>>> it is empty and no polygons are generated. I am really trying to 
>>> understand what is wrong, but since I'm new to VTK I still cannot 
>>> figure it out.
>>>
>>> Could someone please help?
>>>
>>> Thanks.
>>>
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>>
>>
>>
> 
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