It is possible to measure the geometric characteristics of the objects in a binary image,
such as the area or position.
In scikit-image, the most common properties are implemented in skimage.measure, especially in the function regionprops.
This section lists some of them, as an example of possibilities.
Area¶
Area of an object is the number of pixels of this object. The larger the object and the fewer holes it contains, the larger the area.
Bounding box¶
The bounding box (french: boîte englobante) is the smallest rectangle that contains the object.
Centroid¶
The centroid is the centre of gravity of the object. It can be outside the object.
Eccentricity¶
Eccentricity measures the elongation, or stretching, of the object, as it would be an ellipse. It is a positive value, where 0 corresponds to a round object.
Solidity¶
Solidity is the ratio of pixels in the objects to pixels of the convex hull image. It gives a measure of the compactness of the object. In the image below, the convex hull is shown in green.
