EquivDiameter calculates the diameter of a circle . The result diameter is in mm or cm or other. Could you please answer if you know? Thanks all.
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Khaing Zin Htwe
le 27 Avr 2016
Commenté : Image Analyst
le 27 Avr 2016
Hello my seniors, EquivDiameter in regionprops calculates the diameter of a circle . The result diameter is in mm or cm or other. Could you please answer if you know? Thanks all.
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Image Analyst
le 27 Avr 2016
It's in pixels. If you want in real world units, you have to determine a calibration scaling factor to convert pixels to real world units, like in my attached demo.
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Image Analyst
le 27 Avr 2016
What can possibly be easier than multiplying by a scalar?
distanceInCm = distanceInPixels * cmPerPixel;
That's as easy as it gets. You just have to know or figure out what cmPerPixel is. That's what the demo does - it asks you to click on a know distance in the image and asks you the number of real world units for it.
If you already know from other means what cmPerPixel is, then just simply do that multiplication. Really, take another look, it's actually an easy process.
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