Re: I'd like to know how to measure all ROIs (200000~500000) using the macro as fast as manual measuring.

Posted by hatopop100 on May 28, 2020; 8:48am
URL: http://imagej.273.s1.nabble.com/I-d-like-to-know-how-to-measure-all-ROIs-200000-500000-using-the-macro-as-fast-as-manual-measuring-tp5023346p5023408.html

Dear all,

Thanks to Wayne, the problem with timing roiManager(“measure”) is fixed by
waiting until the separate
thread it runs on finishes.

I performed the macro on "v1.53b40" of ImageJ for measuring 180785 ROIs as
below.

-----
timeBefore=getTime();// before part of the macro.

roiManager("Deselect");
roiManager("Measure");

timeAfter=getTime();// after the part.
print("time ",timeAfter-timeBefore); //
-----

This time, I could obtain the time-log like "time  2896" on ImageJ
(v1.53b40).

It's about 23-times faster than "time  67012" obtained by the previous
version of ImageJ (v1.53a).

I really appreciate it.

Sincerely,
Hayato



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