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Re: How to analyse a pattern of holes?

Posted by BillyWu on Aug 09, 2015; 2:35pm
URL: http://imagej.273.s1.nabble.com/How-to-analyse-a-pattern-of-holes-tp5013892p5013959.html

I also have a bit of a problem with measuring my ellipse areas. What I do is I draw a line that fits the width of the paper and set the scale. For example, the paper is 507mm wide. After setting the scale, I then draw an ellipse on my shot pattern and use the measure tool. The problem is that I get an area that's way higher than it should be. I've done the measurements by hand originally and worked out the areas and diameters that way, but the results I get in ImageJ are much higher than they should be. Any advice please? Am I doing something wrong?