[Insight-users] casting question

[Kevin H. Hobbs]

If you want to convert an RGB image to a grayscale image with float as
the pixel type just change OutputImageType in
Insight/Examples/Filtering/RGBToGrayscale.cxx. If you want to change an
RGB image where each channel is an unsigned char to an RGB image where
each channel is a float, or to a vector image type where each component
of the vector is a float, cast should work.
Insight/Examples/Filtering/RGBGradientAnisotropicDiffusionImageFilter.cxx has an example of the vector cast.
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