[vtkusers] Re versing Color

[Xiaofeng Z]

use a lookup table that has a negative slope should do it.  for example, 
mapping -1023 to 255 and 3000 to 0.

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From: "circass" <circass at gmail.com>
Sent: Friday, January 22, 2010 7:45 AM
To: <vtkusers at vtk.org>
Subject: [vtkusers] Re versing Color

>
> Hi my friends,
> i wanna reverse the image colors on a grayscale dicom file.
>
> How i can do that ?
>
> Thanx.
> Circass
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