Elongatedness
Encyclopedia
In image processing
, elongatedness for a region is the ratio between the length and width of the minimum bounding rectangle
of the region. It is considered a feature
of the region. It can be evaluated as the ratio between the area of the region to its thickness squared:
.
where the maximum thickness,
, of a holeless region is given by the number of times the region can be eroded
before disappearing.
Image processing
In electrical engineering and computer science, image processing is any form of signal processing for which the input is an image, such as a photograph or video frame; the output of image processing may be either an image or, a set of characteristics or parameters related to the image...
, elongatedness for a region is the ratio between the length and width of the minimum bounding rectangle
Minimum bounding rectangle
The minimum bounding rectangle , also known as bounding box or envelope, is an expression of the maximum extents of a 2-dimensional object within its 2-D coordinate system, in other words min, max, min, max...
of the region. It is considered a feature
Feature (Computer vision)
In computer vision and image processing the concept of feature is used to denote a piece of information which is relevant for solving the computational task related to a certain application...
of the region. It can be evaluated as the ratio between the area of the region to its thickness squared:
.where the maximum thickness,
, of a holeless region is given by the number of times the region can be erodedErosion (morphology)
For use of "Erosion" in dermatopathology, see Erosion Erosion is one of two fundamental operations in Morphological image processing from which all other morphological operations are based...
before disappearing.