[vtkusers] smoothing vtkImageData with vtkImageGaussianSmooth

[Liam Kurmos]

Thanks, worked great:

gaussianSmoothFilter->SetInput(vol);
gaussianSmoothFilter->Update();
vol=gaussianSmoothFilter->GetOutput();

unfortunately it didn't solve my problem with the contour tree
construction... though i didnt really expect it to.

Liam

On Wed, Jul 14, 2010 at 3:17 PM, Jothy <jothybasu at gmail.com> wrote:
> GaussianFilter->GetOutput() should return the output in vtkImageData format.
>
> Try and let's know
>
> Jothy
>
> On Wed, Jul 14, 2010 at 3:13 PM, Liam Kurmos <quantum.leaf at googlemail.com>
> wrote:
>>
>> On Wed, Jul 14, 2010 at 3:04 PM, Jothy <jothybasu at gmail.com> wrote:
>> > My problem was different. I was trying to create a graduall fall off
>> > from
>> > the image with a uniform scalar value inside it. Something like a cube
>> > of
>> > uniform values and a graduall fall of scalar value from its edges.
>> >
>>
>> I see. I imagine that is what should happen if you smooth such an
>> image by gaussian convolution.
>>
>> I already have summed gaussian data in my image ( which should be
>> smooth). I'm trying to use a library to produce a Contour Tree from
>> the data but it is producing spurious values, though i am sceptical my
>> supervisor want me to try smoothing the gaussian data and see if that
>> solves the problem.
>>
>> Is there a way i can feed the output of the gaussianSmoothFilter back
>> into the vtkImageData vol, such that it updates it with smoothed
>> values and i can then access these with
>> vol->GetScalarComponentAsFloat(i, j, k, 0);
>>
>> ?
>>
>>
>> Liam
>
>