home documentation change logs downloads static demos dynamic demos CPU times mailing list contacts Last update: November 28 2008 CPU times All experiments performed with Qgar 2.1.1  Pentium 866 Mhz, 256 Mb RAM, Linux   grey level images   binarized images  MATHEMATICAL MORPHOLOGY average CPU times (in seconds) of 3 experiments only 1 experiment when indicated in italics images 1024 x 924 4752 x 3507 19500 x 6000 linear horizontal dilation 0.02 0.77 21.85 0.04 0.23 2.35 linear vertical dilation 0.02 1.08 43.23 0.04 0.37 14.56 linear diagonal dilation 0.02 1.09 31.80 0.04 0.42 5.54 dilation +     erosion 0.07 1.72 49.75 0.07 0.69 20.00 opening +     closing 0.13 3.20 83.61 0.10 1.77 40.62    Unknown processor, Unix   Unknown processor, 196 Mb RAM, Windows  Courtesy of EDF (Electricité de France) images 4480 x 8666 10784 x 11759 10784 x 12839 8660 x 2384 8679 x 2384 8760 x 2352 text/graphic separation 522 4674 1075 830 863 1860 text extraction 142 1342 150 198 253 472 total CPU seconds 664 11.1mn 6016 100.3mn 1225 20.4mn 1028 17.1mn 1116 18.6mn 2332 38.9mn text/graphic separation 60     107 116 263 text extraction 12     21 28 66 total CPU seconds 72     128 144 329