Module: Area ()
For an introduction, see section Analysis.
In the continuous, or theoretical, case, Area is defined as:
In the discrete, or actual, case, area is approximated by the number of pixels in X:
Where :
The area measure can be weighted by a size factor which characterizes the area of a single pixel. In which case, the measure is physically homogeneous to the area.
On a binary image, this module returns the number of non zero pixels in the image. Computed area takes into account pixel size.
See also: Volume Fraction, Euler Number.
Input Image [required]
The image to be analyzed. Supported types include: binary images (Uniform Label Field with 2 labels).
Interpretation
This port specifies whether the input will be interpreted as a 3D volume or a stack of 2D images for processing.
- "3D": the module configuration is set to 3D. The image will be processed as a whole in 3D.
- "XY planes": the module configuration is set to 2D. The image will be processed slice per slice.