[vtkusers] ImageViewer2 Usage

[Jothybasu K Selvaraj]

I think vtkImageViewer2 is often used to view medical images, so medical
images use a grey LUT often. I think the vtkImageViewer should be using a
greyscale LUT by default ( with less pain to the user).

By default the InteractorStylrToImage allows you to vary windowlevel and
WindowWidth on mouse move , thats why when you interact it changes the
grayscale. I hope you know what I mean by window level and width.

Dig the sourcefile of vtkImageViewer2, it should use greyscale LUT.

Jothy

On Tue, Apr 13, 2010 at 4:22 PM, David Doria
<daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> wrote:

> On Tue, Apr 13, 2010 at 11:18 AM, Jothybasu K Selvaraj
> <jothybasu at gmail.com> wrote:
> > You use vtkImageViewer2->SetupInteractor(vtkRenderWindowInteractor)
> >
> > If you don't set that it will allow you to rotate it in 3D.
> >
> > From the links ,I found you are setting the interactor as
> > interactor.SetRenderWindow()
> >
> > Jothy
>
> Hi Jothy -
>
> This is getting closer:
>
> http://www.vtk.org/Wiki/VTK/Examples/ImageViewer2
>
> But it seems to switch to grayscale as soon as you do any interaction??
>
> Also, the question remains why would one use this instead of a more
> typical workflow of simply using SetInteractorStyle() with a
> vtkInteractorStyleImage?
>
> Thanks,
>
> David
>
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