Shape Statistics

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Compute shape properties of input label map(s) or mask(s). The following properties are calculated:

Property	Description
Elongation	The ratio of the largest principal moment to the smallest principal moment. Its value is greater or equal to 1.
Equivalent Ellipsoid Diameter	The diameters of the ellipsoid with the same size and ratio of all the axes as the object. The value depends on the image spacing.
Equivalent Spherical Perimeter	The equivalent perimeter of a hypersphere with the same volume as the object. The value depends on the image spacing.
Equivalent Spherical Radius	The radius of a sphere with the same volume as the region.
Feret Diameter	The diameter of the sphere that inclues the region.
Flatness
Number of Pixels	Number of pixels in the region.
Number of Pixels on Border	Number of pixels adjacent to a pixel with value FALSE.
Perimeter
Perimeter on Border
Perimeter on Border Ratio
Physical Size	The volume of the region in physical units.
Principal Axes	The principal axes of the region.
Principal Moments	The principal moments of the region.
Roundness	The roundness of the object.

Inputs

Input

Input Image(s) or Mask(s)

Type: Image, Mask, List, Required, Single

Outputs

Output

Table containing the shape statistics of the input.

Type: Table

Centroid Index

A list containing the indices [i, j, k] of the center of mass for each mask or component.

Type: Numeric Array

Centroid Position

A list containing the positions [x, y, z] of the center of mass for each mask or component.

Type: Numeric Array

Centroid Seeds

A output labelmap or mask with a seed for each mask or labelmap. If the input is a mask, the seed output is TRUE at the center of mass of each mask and FALSE elsewhere. If the input is a labelmap, the center of mass of each labelmap is indicated by the value of that label.

Type: Image