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Fig. 7
Correlation coefficient as a function of scale for two circular structures (σ1 = 10 pix and σ2 = 5 pix) shifted by 0, 5, 10, 15, and 20 pix (full line, dotted, dashed, dash-dotted, and dash-dot-dot-dotted lines, respectively). The dashed vertical lines denote the prominent scale of the two circular structures.
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