ReferenceMeasurement featuresObject fieldObject field featuresObject Count Total Pixel/Voxel Count Total Object Area Area/Volume Fraction AreaFraction=MeasuredAreaTotalObjectAreaVolumeFraction=MeasuredVolumeTotalObjectVolumeMeasured Area/Volume Perimeter TODO: check if same as objectPerimeter=4π⋅(P0+P45+P90+P135)Mean Chord TODO: check if same as objectMeanChord=P0+P45+P90+P1354⋅AreaSurf Volume Ratio SurfVolumeRatio=MeasuredAreaπ4⋅PerimeterIntensityObject size