Zhixun Zhu, Lei Zhao, Heng Li, Hairui Wang. Magnetic Tile Surface Defect Detection Algorithm Based on Improved Homomorphic Filtering and Canny Algorithm[J]. Laser & Optoelectronics Progress, 2022, 59(18): 1810009
- Laser & Optoelectronics Progress
- Vol. 59, Issue 18, 1810009 (2022)
Fig. 1. Structure chart of successive mean quantization transform
Fig. 2. Image comparison. (a) Original image; (b) enhanced image
Fig. 3. Flow chart of proposed algorithm
Fig. 4. Detection images of magnetic tile blowhole defect. (a) Original image; (b) Sobel; (c) proposed algorithm
Fig. 5. Detection images of magnetic tile surface defects. (a) Original images; (b) Sobel; (c) Canny; (d) OTSU; (e) literature [6]; (f) labeled defect; (g) proposed algorithm
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Table 1. Comparison of test result parameters
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Table 2. Comparison of parameters mean value
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