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This image differs from image 5 in that the amplitudes of the waves are now dependent on the wavelength. The short-wavelength waves have lower amplitude, so that one sees more of the long wavelenths. The average values of the coefficients fall off as the inverse of the wavelength (what is called "1/f" noise). It can be seen that the feature sizes are somewhat bigger, and that one can see a variety of length scales.
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