Commit b2a9f6fb authored by Richard A. Kirian's avatar Richard A. Kirian Committed by Thomas White
Browse files

hdfsee: document --show-rings and --simple-rings options

parent 252cca2f
......@@ -44,6 +44,9 @@ static void show_help(const char *s)
" sets all pixels in each 3x3 region to\n"
" zero if any of them have negative\n"
" values.\n"
" --show-rings Overlay rings that indicate resolution.\n"
" --simple-rings=XX,YY,... Overlay rings at specified radii XX, YY, ...\n"
" in pixel units.\n"
" -c, --colscale=<scale> Use the given colour scale. Choose from:\n"
" mono : Greyscale, black is zero.\n"
" invmono : Greyscale, white is zero.\n"
......
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