However, when we use the Laplacian operator method, an apparent trend can be observed, indicating that the mean roughness (convex and/or concave curvature) increase with an increase in the frequency of BF as is expected. 4.5.
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Structure-from-motion approach for characterization of bioerosion patterns using UAV imagery.
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The sentences
In the case of mean values of both area and perimeter, a clear trend to increase with an increase in the frequency of BF was observed, indicating that the largest BF are situated closer to each other ( Figure 8a,b ).