[vtkusers] How to get the color of a pixel in image?

[wang minyou]

I'm a beginner to use vtk. I want to get the color of a pixel which is 
contained in a image. Now I use vtkBMPReader to readin the iamge, is there 
any class I can use to get the color of interested pixel .

Thank you very much!

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MR. Wang
wmy1024 at hotmail.com

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