
# Add (Gaussian white) wrapped noise

Add noise to the data, which is done by adding Gaussian noise and “wrapping” it to the $\mathbb S^1$.

### Matlab Documentation

 1 2 3 4 5 6 7 8 9 10 11 % fn = addNoise(f,sigma) add wrapped Gaussian noise. % % INPUT % f : cyclic data % sigma : standard deviation % % OUTPUT % fn : noisy data (f+sigma*randn(size(f))_{2pi} % --- % Manifold-valued Image Restoration Toolbox % R. Bergmann ~ 2018-03-03