[vtkusers] How to adjust VTK Image brightness and contrast with QT Slider

[Jothybasu Selvaraj]

It should be some thing like this

// Create a greyscale lookup table

        vtkSmartPointer<vtkLookupTable> table =

          vtkSmartPointer<vtkLookupTable>::New();

        table->SetRange(windowLow,windowUp); // image intensity range

        table->SetValueRange(0.0, 1.0); // from black to white

        table->SetSaturationRange(0.0, 0.0); // no color saturation

        table->SetRampToLinear();

        table->Build();

        // Map the image through the lookup table

        vtkSmartPointer<vtkImageMapToColors> color =

          vtkSmartPointer<vtkImageMapToColors>::New();

        color->SetLookupTable(table);

        color->SetInputConnection(reslice->GetOutputPort());



Jothy



On Mon, Feb 13, 2012 at 5:48 PM, yarram <somasekhar.vit at gmail.com> wrote:

> @Jothy: I am new to this VTK, so could you provide me the sample code/
> snippet for controlling the image contrast and brightness with QT slider??
> Thanks in advance......
>
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-- 
Jothy
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