Crop Macro

Posted by oselm on Jul 14, 2015; 10:09am
URL: http://imagej.273.s1.nabble.com/Crop-Macro-tp5013548.html

Hi all,

I have various pictures of petri dishes and I would like to find a way to crop everything that is outside and just keep the area inside the dish as in the example here below:
Original

Processed


Any suggestion?