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Fractal calculation with box-counting method. A binary subimage is given (a), where red pixels are kept only. Number of nonempty boxes in a grid setting with box sizes 2, 3, 4, 6, 8, 12, 16, 32, 64, and 128 are found first. Then negative slope induced from these values in log-log plot (b) is reported as fractal dimension of (a).
