[vtkusers] Gradient, 2D histogram , and its memory implications

[tony marrero]

Hello Guys,

I would really appreciate some help regarding this matter.

Basically, i am trying to obtain a 2D histogram of CT ( .raw and .vgi )
volume data, and dont know what to do to achieve this.

It was suggested to me to use vtkImageAccumulate. I think in this case two
scalar components have to be set, one of them being the gradient magnitudes
of the data....  no?

But setting 2 scalar components would double the memory usage and so far i
haven't come across  a more elegant method of passing the gradient gradient
values to the Accumulate function .

What recommendations can anyone give me to solve the  memory issue, and
also to obtain the gradient values from the volume data.

Thanks a lot,

Tony Marrero
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20070521/9801b1c6/attachment.htm>