Image Processing and Feature Extraction for Hull Structure GMAW Based on Weld Pool Visual Sensing

Table 5

Computed and measured value of weld pool width.

Welding speeds (cm/min)	Algorithm-weld pool width (mm)
	Sobel	Otsu	K-means	FCM-Sobel	Actual value
23	9.13	9.07	8.91	8.85	8.77
26	10.44	9.02	8.47	8.80	8.73
29	9.07	8.96	8.80	8.74	8.68