Re: Turbulent Jet Morphology?

Posted by Frank Shaffer on Jan 22, 2020; 12:38pm
URL: http://imagej.273.s1.nabble.com/Turbulent-Jet-Morphology-tp5022840p5022885.html

I thank everyone for excellent suggestions.  However, I have not been able to get good results when trying to recognize the turbulent eddies.  So I reverted to a method we developed that detects the edges of the eddies, and from that, determines the length scales of the turbulent eddies.  This is described in our paper that's been accepted for publication by the Journal of Fluid Mechanics.  We use smoothing with a median filter.  This smoothes but preserves edges.  Then we apply Canny edge detection.  I implemented this in ImageJ. An example result is attached.
Thanks again for all of your suggestions!
Frank Shaffer

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