ReferenceMeasurement featuresObject sizeObject size featuresEq Diameter EqDiameter2D=π4⋅AreaEqDiameter3D=3π6⋅VolumeFill Area Incircle Diameter Length Length=4Perimeter+Perimeter2−16⋅AreaLine Length Max Feret Max Feret 90 Min Feret Min Rect Area Object Pixel/Voxel Count Object Area/Volume Outer Perimeter Perimeter Perimeter=4π⋅(P0+P45+P90+P135)Surface Perimeter Contour Volume Eq Cylinder VolumeEqCylinder=4(π⋅d2)(l−d)+6π⋅d3l=max(MaxFeret,Length)d=min(MinFeret,Width)Volume Eq Sphere VolumeEqSphere=6π⋅EqDiameter3Width Width=LengthAreaObject fieldObject shape