// RON_Calculation.txt // // FVH (2010-03-18) getDateAndTime(year,month,dow,day,h,m,s,msec); t = ""+year+"-"+month+"-"+day+"T"+h+":"+m+":"+s; // IS THERE A STACK READY? ns = nSlices(); if (ns <= 1) exit("RON Calculation only works with a stack of bias images!"); title = getTitle(); print("\n-------------------- "+t+" --------------------"); print("RON Calculation:"); // PROCESS print(" * using "+ns+" bias images from the stack \""+title+"\""); for (i=1; i <= ns; i++) { setSlice(i); print(" "+getInfo("slice.label")); } print(" * \"RON\" = standard deviation ..."); run("Z Project...","projection=[Standard Deviation]"); rename("RON"); print(" * measuring mean read-out noise ..."); run("Set Measurements..."," mean standard modal min max display redirect=None decimal=4"); run("Measure"); ron = getResult("Mean"); print(" ... RON = "+ron+" counts"); print(" * saving result in CCD preferences ..."); call("ij.Prefs.set","ccd.ron",""+ron); print("FINISHED!");