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

[Jothybasu Selvaraj]

vtkImageShiftScale seems to be modifying the sclar values of the
vtkImageData. I would rather use an appropriate vtkLookupTable (modify the
range in the LUT) and use a vtkImageMapToColors to change the contrast and
brightness. Then connect the signal of slider to the slot.

It works fine for me at least.

I use QXTSpanSlider in QXT widgets, it has two sliders upper and lower
unlike QSlider.

Jothy

On Fri, Feb 10, 2012 at 8:11 PM, yarram <somasekhar.vit at gmail.com> wrote:

> Thanks for your reply, but I couldn't find anything related to image
> brightness and contrast. I actually want to control the image brightness
> and
> contrast with QT Slider. Can you provide me the code for this??
>
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-- 
Jothy
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