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. 2011 Sep 13;6(9):e24796. doi: 10.1371/journal.pone.0024796

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Helmut Ahammer.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Fourier dimensions for an image with a constant gray value, an image with a cosine shaped gray value course in the x-direction, three images with predefined fractal dimensions (D = 2.2, 2.5, 2.8) and an image with random gray values. Inaccurate as well as erroneous values are emphasized with arrows.