- Surface
-
The number of pixels in the region.
- Perimeter
-
The number of pixels on the outline of the region.
- Mean
-
The mean of the coordinates of the points within the region.
- Points of Including Rectangle (min & max)
-
The coordinates of the minimal point (at the left top) and the
maximal point (at the right bottom) of the including rectangle of
the region.
- Height of Including Rectangle
-
The height (in number of pixels) of the including rectangle of
the region.
- Width of Including Rectangle
-
The width (in number of pixels) of the including rectangle of
the region.
- Center of Including Rectangle
-
The coordinates of the center of the including rectangle of the
region.
- Ratio Surface/(Height*Width)
-
Ratio between the area of the region and this of it including
rectangle. This measure is 1.0 for a perfect rectangle and
approaches zero for very small structures.
- Ratio Perimeter/(2*Height*Width)
-
Ratio between the perimeter of the region and this of it
including rectangle. This measure is 1.0 for a convex region, larger
for regions with boundaries which double back on themselves.
- Ratio (16*Surface)/(Perimeter**2)
-
This measure is 1.0 for a perfect square, smaller for shapes
with irregular boundaries and maximal for a perfect circle in
continuous.
- Log10(Height/Width)
-
This value gives a symmetric measure of the aspect ratio.
- Direction of the Major Axis
-
The direction of the longest projection (in the including
rectangle of the region).
- Angle of the Major Axis (radian)
-
The angle (in radians) of the major, or longest, axis of the
including rectangle of the region.
- Angle of the Major Axis (degree)
-
The angle (in degrees) of the major, or longest, axis of the
including rectangle of the region.
- Elongation (Length/Width)
-
Ratio between the length and the width of the including
rectangle of the region. This measure is zero for a perfect circle
and approaches 1.0 for an ellipse which is long and narrow.
- Elongation (with the eigen values)
-
Ratio between the eigen value corresponding to the major axis of the including rectangle and the sum of the eigen values corresponding to the major and minor axis of the including rectangle of the region. This measure is zero for a perfect circle and approaches 1.0 for an ellipse which is long and narrow.