svn co https://svn.janelia.org/penglab/projects/vaa3d_tools/released_plugins/v3d_plugins/dt

   Usage : v3d -x Fast_Distance -f dt -i <inimg_file> -o <outimg_file> -p <method> <channel> <first> <rescale> <marker_file>

     method       1: 3D, 2: 2D (for all individual Z-sections), default 1
     channel      channel number to do dt (first channel is 1), default 1
     first        1: use the 1st markers intensity to define the 'img background'
                  0: use intensity 0 to indicate background), default 0
     rescale      Rescale output image intensity to [0,255], 1: rescale, 0: not rescale, default 0
     marker_file  marker file name if 'first' is set to 1

   e.g. v3d -x Fast_Distance -f dt -i input.raw -o output.raw -p 1 1 0 0 mymarker.marker