Table 2.

Overview of the references for border irregularity descriptors (based on [8]).

Border irregularity descriptors	Computer vision references
Compactness index	[26–28]
Convex hull (solidity)	[29, 30]
Fractal geometry and dimensions	[31–33]
Irregularity index	[34, 35]
Fourier features	[36]
Wavelet transform	[37]