<div>Dear all,</div>
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<div>I have a 2D grey level image. I'd like to find out the light intensity of particular point(or pixel). I saw some solutions use vtkImageData::GetScalarPointer(). </div>
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<div>Can anyone confirm if it returns the light intensity? Or the return value means something else?</div>
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<div>Thank you for your reading.</div>
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<div>Bests</div>
<div>Wenlong</div>