[vtkusers] change contrast in volume object (it's too dark)

[powerhouseofexcellence]

Hi Amy,

In principle it should just be a matter of:

this->WindowLevel->SetInput(this->ImageData);
this->VolumeMapper->SetInput(this->WindowLevel->GetOutput());

I am afraid it will kill my machine to do window/level on the whole
image data which probably has about 50 slices - when I try window
leveling it will do the calculation for the whole image data container
right? Are there any shortcuts or is this nothing to be concerned
about?

Thanks

On 8/18/05, Amy Squillacote <amy.squillacote at kitware.com> wrote:
> You should be able to use vtkImageMapToWindowLevelColors to do what
> you want to do. The on-line documentation for that class is here:
> http://www.vtk.org/doc/nightly/html/classvtkImageMapToWindowLevelColors.html.
> 
> - Amy
> 
> At 11:01 PM 8/17/2005, powerhouseofexcellence wrote:
> >Hello,
> >
> >I have a volume rendering going on, but the contrast of the volume is
> >very poor, it's kind of difficult to see. Is there a way to implement
> >a window/level function on the volume object? Or do I shift the values
> >in my opacity/color transfer functions to create a window/level type
> >effect?
> >
> >Thanks
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