[Paraview] Converting an image from float to unsigned char

[David Doria]

I have a mhd image of floats that I am trying to write as a PNG. Of
course the writer complains that the only allowable inputs are
unsigned char images. Is there a way to convert image types inside
ParaView (I would want to scale the floats to be in the range [0,255]
before casting)?

Thanks,

David