Three-Dimensional Asphalt Pavement Crack Detection Based on Fruit Fly Optimisation Density Peak Clustering

Figure 15

Comparison of crack identification results. (a) Original cracks. (b) The 2D pseudoground truth images. (c) The grey histogram of the crack image. (d) Otsu threshold segmentation. (e) Canny edge detection. (f) K-means detection. (g) FOA-DPC detection. (h) Morphological processing of detection results.

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