[vtkusers] vtkImageCheckerboard for arbitrary images

[David Doria]

On Thu, Dec 17, 2009 at 7:41 AM, David Doria <daviddoria+vtk at gmail.com> wrote:
> On Thu, Dec 17, 2009 at 5:48 AM, Lodron, Gerald
> <Gerald.Lodron at joanneum.at> wrote:
>> Hi,
>>
>>
>> I tested vtkImageCheckerboard and found out that the filter only works if both input images are of the same size and same origin/spacing etc. Is there a comparison filter which handles this correct?
>>
>> Best regards
>
> How would expect to compare them if they are not the same size? Resize
> one of them to fit first? Maybe you can explain what it is you are
> trying to compare and someone can suggest a way to do it?
>
> Maybe we can start by getting example where they are the same size to work:
> http://www.vtk.org/Wiki/VTK/Examples/Visually_Compare_Two_Images
>
> Even with two images of the same size, it crashes. Anyone see anything
> I've done wrong there?
>
> Thanks,
>
> David
>

Dean fixed the example. The main problem was the lack of the call to:
checkerboardFilter->SetNumberOfDivisions(3,3,1);

Thanks Dean!

David