The TBSS plot shows bad graphs and crashes sometimes. This may be caused by changes in the QmitkPlotWidget
The problem is caused by the mitkPartialVolumeAnalysisHistogramCalculator that thinks a mask image is selected, but requires an unsigned char pixel type, whereas the tbss roi has signed char pixel type
[2bc776]: Merge branch 'bug-16088-errorOnPlottingTbss'
2013-09-26 15:29:06 Thomas Van Bruggen [b24f18]
changed tbss roi pixel type to unsigned char
2013-09-26 14:31:25 Thomas Van Bruggen [0dc508]
added check for signed char that causes error message