MATLAB: 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.

diameterequivdiameterImage Processing Toolboxspatial calibration

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.

Best Answer

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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