[vtkusers] Traversing through Image with x,y,z coordinates

David Doria daviddoria+vtk at gmail.com
Fri Mar 19 18:37:16 EDT 2010


On Fri, Mar 19, 2010 at 3:58 PM, Christian Werner
<christian.werner at rwth-aachen.de> wrote:
> Hello!
>
> I am about to build a nice BinaryRemoveRegions filter that will scrap away
> groups of pixels that are below/above a certain size. I took the vtkMedian
> Filter as a template and cropped it down to the most basic code which
> traverses through the image in X-Y-Z order. There I wanted to check if
> everything goes fine by simple copying the input image to the output image.
> Unfortunately, the pointers to the InData are corrupt. You can see the
> result of the copying attached.
>
> It is pretty sure that the inData pointers are corrupt, and not the outData
> pointers since I managed to draw pixels every Xth row/column with correct
> results. I have attached the code.
>
> Could somebody give me a hint of what is causing this malfunction? Note that
> the actual x/y/z coordinates are crucial for my algorithm, because I have to
> check for neighboring pixels in all directions.
>
>
> Best regards,
> Christian

Can you attach the header file and the test/example code?

Thanks,

David



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