Application of Variational Mode Decomposition and k-Nearest Neighbor Algorithm in the Quantitative Nondestructive Testing of Wire Ropes

Figure 12

Grayscale images (top) and photos (bottom) of 6 different defects. (a) One broken wire, (b) two broken wires, (c) three broken wires, (d) four broken wires, (e) five broken wires, and (f) seven broken wires.

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(b)

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