close("*");
  for (i=0; i<10; i++) {
     run("Boats (356K)");
     run("Duplicate...", "title=[] use");
     run("Set Scale...", "distance=0 known=0 pixel=1 unit=pixel");
     run("Set Measurements...", "area mean standard min display");
     setAutoThreshold("Li dark");
     run("Convert to Mask");
     run("Analyze Particles...", "size=20-200 pixel circularity=0.00-1.00 show=Nothing display summarize add");  
     run("Close All");
     if (roiManager("count")>0) roiManager("reset");
  }
exit;


  close("*");
  setBatchMode(true);
  run("Set Measurements...", "area mean standard min display");
  for (i=0; i<10; i++) {
     run("Boats (356K)");
     run("Gaussian Blur...", "sigma=&i");
     rename(getTitle()+"-"+(i+1));
     run("Set Scale...", "distance=0 known=0 pixel=1 unit=pixel");
     setAutoThreshold("Li dark");
     run("Analyze Particles...", "size=20-200 pixel summarize");
     run("Close All");
   }