test_segmentation: Eliminated unecessary scalar conversions.
test_segmentation: Eliminated unecessary scalar conversions.

dstoe/vigra,dagophil/vigra,dagophil/vigra,dstoe/vigra,dstoe/vigra,funkey/vigra,dstoe/vigra,dstoe/vigra,dagophil/vigra,funkey/vigra,dstoe/vigra,dagophil/vigra,funkey/vigra,dstoe/vigra,dagophil/vigra,dagophil/vigra,funkey/vigra,funkey/vigra,funkey/vigra,dagophil/vigra,funkey/vigra