Fractional Brownian field

Code author: Frédéric Richard <frederic.richard_at_univ-amu.fr>

This example shows how to simulate a fractional Brownian field with a prescribed Hurst index.

import numpy as np
from afbf import tbfield

N = 256  # Image size.
H = 0.2  # Hurst index in (0, 1).

# Define the field.
Z = tbfield('fbf')

# Change the parameter of the Hurst function.
Z.hurst.ChangeParameters(np.array([[H]]))
Z.NormalizeModel()

# Simulate the field.
z = Z.Simulate()

# Display the simulation.
z.Display()