Figure 2

Morphometric features. The features are numeric descriptors of image contained information. The terminology used to define the features is illustrated in the schematic column. The segmentation column shows from top to bottom, a real example of a computationally defined mitochondrial region of interest (ROI), the perimeter of that ROI, the bodies that are remaining when removing the perimeter from the ROI, and an illustration of skeleton (blue, green, and red pixels), nodes (green pixels), and endpoints (red pixels). Please note that the terminology originates from computer vision and graph theory. Aspect ratio and form factor were used for both mitochondria and cells.