Hello,

I have been unable to complete the processing to get the WMH probability map and EV quantification. The other outputs are able to finish, and look great, however! The error I get is as follows. 

At the below steps:
Constructing the WM, GM and CSF templates
Constructing PV Estimates and Ventricle template

I get the following error:
Undefined function or variable 'bwlabeln'.

Error in WhyD_preproc (line 130)
[L_vent,num_vent] = bwlabeln(vent_cut); [hist_L_vent,xout]
= hist(L_vent(:),unique(L_vent));

Error in WhyD_setup (line 118)
if check_preproc_vals(n) == 0 names =
names_stack{n,1}; names_stack{n,1} =
WhyD_preproc(names, spmtoolbox_path); end

Error in WhyD_GUI>run_button_Callback (line 281)
WhyD_setup(arg0,arg1,arg2,arg3,arg4,arg5,arg7,arg8,arg9,2);

Error in gui_mainfcn (line 95)
feval(varargin{:});

Error in WhyD_GUI (line 28)
gui_mainfcn(gui_State, varargin{:});

Error in
guidemfile/@(hObject,eventdata)WhyD_GUI('run_button_Callback',hObject,eventdata,guidata(hObject))

Do you have any possible suggestions as to what might be going wrong?

Thanks so much.