[vtkusers] Re versing Color

[David Doria]

On Fri, Jan 22, 2010 at 10:42 AM, circass <circass at gmail.com> wrote:

>
> I Gonna try to implement that to my code.
> Thanx,
> Circass
>
>
> KS Jothybasu wrote:
> >
> > In vtkLookupTable. Are you using vtkLookupTable if not here is a part of
> > the
> > code which might help you.
> >
> > * # Create a greyscale lookup table
> >     table = vtk.vtkLookupTable()
> >     table.SetRange(grayscale) # image intensity range
> >     table.SetValueRange(1,0) # from black to white
> >     table.SetSaturationRange(0.0, 0.0) # no color saturation
> >     table.SetRampToSCurve()
> >     table.SetNumberOfTableValues(402)
> >     table.Build()
> >
> >     # Map the image through the lookup table
> >     color = vtk.vtkImageMapToColors()
> >     color.SetLookupTable(table)
> >     color.SetInputConnection(reslice.GetOutputPort())
> >
> >     # Display the image
> >     actor = vtk.vtkImageActor()
> >     actor.SetInput(color.GetOutput())
> > *
> > Jothy
> >
> > On Fri, Jan 22, 2010 at 3:36 PM, circass <circass at gmail.com> wrote:
> >
> >>
> >> Where should i use that function ?
> >> is there a specific filter or what ?
> >>
> >> Thanx
> >> Circass
> >>
> >>
> >> KS Jothybasu wrote:
> >> >
> >> > Could you please try SetValueRange(1,0).
> >> >
> >> > Regards
> >> >
> >> > Jothy
> >> >
> >> > On Fri, Jan 22, 2010 at 2:06 PM, circass <circass at gmail.com> wrote:
> >> >
> >> >>
> >> >> I think Alessandro understood me wrong, so i m trying to explain what
> >> i
> >> >> want
> >> >> more clearly.
> >> >>
> >> >> I have dicom files that i read with itk and vtk.
> >> >>
> >> >> my images are already greyscale, i want to change the blacks with
> >> whites
> >> >> and
> >> >> vice versa.
> >> >>
> >> >> Thanx.
> >> >> Circass
> >> >> --
> >> >> View this message in context:
> >> >> http://old.nabble.com/Reversing-Color-tp27272638p27273652.html
> >> >> Sent from the VTK - Users mailing list archive at Nabble.com.
> >> >>
> >> >> _______________________________________________
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> >> >>
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> >> >
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> >> >
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> >> >
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> >>
> >> --
> >> View this message in context:
> >> http://old.nabble.com/Reversing-Color-tp27272638p27275052.html
> >> Sent from the VTK - Users mailing list archive at Nabble.com.
> >>
> >> _______________________________________________
> >> Powered by www.kitware.com
> >>
> >> Visit other Kitware open-source projects at
> >> http://www.kitware.com/opensource/opensource.html
> >>
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> >>
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> >>
> >
> > _______________________________________________
> > Powered by www.kitware.com
> >
> > Visit other Kitware open-source projects at
> > http://www.kitware.com/opensource/opensource.html
> >
> > Please keep messages on-topic and check the VTK FAQ at:
> > http://www.vtk.org/Wiki/VTK_FAQ
> >
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>
>
Jothy,

I don't see an example about vtkImageMapToColors on the wiki. Care to add
one :) ?

Thanks,

David
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