Slicer/Slicer — pull request #145 by fedorov (2014-06-12 14:49:33+00:00)
Title: BUG: change output type to float

Cast of the output to the input type led to occasional overflows. Output of this
module is inherently floating point, as it is a multiplication of the recovered
bias field by the input image.

The issue discovered and reported by Kilian Pohl.