Spectra of isotropic and anisotropic wavelet and Fourier coefficients for a map containing a sinusoidal stripe pattern with k_y =16, i.e., a period of p = 32 pixels in a 512² pixels image.The two Fourier spectra consist only of a single point at s = 32 pixels and are otherwise zero. In all figures, we plot the absolute value for the anisotropic Fourier spectrum.All other coefficients are real. The wavelet analysis used a localization parameter b = 1.