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Velocity tuning curves of the h-l-EMD array and the h-l-scc-EMD array for different global contrasts. The contrast of the park scene panorama (Figure 4, no. 1) was set to 100%, 75%, 50%, and 25% respectively. The response of the h-l-EMD array (a) shows the quadratic contrast dependence (b). In the responses of the h-l-scc-EMD (c) the contrast dependency is eliminated almost completely (curves are identical for all contrast values).
