def DistanceMap(_img, mpar={}, _gui=False):
    imp = Duplicator().run(_img)
    IJ.run(imp, "Exact Euclidean Distance Transform (3D)", "")
    imp = IJ.getImage()
    IJ.setMinAndMax(imp, 0, 65535)
    IJ.run(imp, "16-bit", "")
    imp.setTitle("DistanceMap")
    imp.hide()
    return (imp,)