= {
" ",
"Usage: bedge [options] infile.mrc outfile.mrc",
"---------------------------------------------",
"Smooths the edge of an image to a uniform background.",
" ",
"Parameters:",
"-verbose 7 Verbosity of output.",
"-datatype u Force writing of a new data type.",
"-truncate -0.5,1.2 Truncate data to minimum and maximum before edge operation.",
"-invert Invert density in the image before edge operation.",
"-size 4000,4000,10 Size of region inside edge (default 90% of image size).",
"-start 2500,1500,5 Start of edge (default 5% from image origin).",
"-width 8 Gaussian width (default 0.1, sharp edge, <0 inverts selection).",
"-shape oval Edge shape: rectangular (default), oval, cylindrical.",
"-fill 150 Fill value for background: average (default), background, or value.",
" ",
NULL
}