HistogramWidget( wxWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size, int flag,vtkImageData* imageData,int type);
HistogramWidget( wxWindow *parent, wxWindowID id);
HistogramWidget( wxWindow *parent, wxWindowID id, const wxPoint &pos, const wxSize &size, int flag,vtkImageData* imageData,int type);
HistogramWidget( wxWindow *parent, wxWindowID id);