The Noise operation is used to add random Gaussian noise on the diffraction patterns. See Radial noise operation for another type of operation to add noise to the diffraction pattern.


The standard deviation of the Gaussian distribution must be specified by the user. The greater the standard deviation the greater the noise in the diffraction patterns will be.


Original pattern (no added noise)


Pattern with noise (standard deviation of 75)


Pattern with noise (standard deviation of 150)