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Figure 5
In (a) all pixels for which the gradient angle is close to 90° are shown in light grey and those close to 270° are shown in dark grey. In (b) a close-up view of the right-hand side close to the horizontal line is shown. |
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Figure 5
In (a) all pixels for which the gradient angle is close to 90° are shown in light grey and those close to 270° are shown in dark grey. In (b) a close-up view of the right-hand side close to the horizontal line is shown. |