. Author manuscript; available in PMC: 2018 Oct 1.

Published in final edited form as: Eur Urol Focus. 2016 Jun 16;3(4-5):457–466. doi: 10.1016/j.euf.2016.05.009

Table 2.

Summary of 199 quantitative histomorphometric features extracted from both the tumor fields and adjacent benign fields

Feature type	No.	Description
Nuclear shape	100	Area ratio, distance ratio, SD of distance, variance of distance, distance ratio, perimeter ratio, smoothness, invariant moment 1–7, fractal dimension, Fourier descriptor 1–10: mean, SD, median, minimum/maximum of each
Voronoi diagram	12	Polygon area, perimeter, chord length: mean, SD, minimum/maximum ratio, disorder
Delaunay triangulation	8	Triangle side length, area: mean, SD, minimum/maximum ratio, disorder
Nuclear density	27	Density of nuclear centroids, distance to nearest nuclear centroid
Nuclear subgraphs	26	Eccentricity; clustering coefficients C, D, and E; largest connected component: mean, SD
Nuclear texture	26	Entropy, energy, intensity contrast: mean, SD

SD = standard deviation.