Xiaolei Li, Shuguang Zeng, Sheng Zheng, Yanshan Xiao, Shaowei Zhang, Qiang Li. Surface Crack Detection of Ceramic Tile Based on Sliding Filter and Automatic Region Growth[J]. Laser & Optoelectronics Progress, 2019, 56(21): 211003
- Laser & Optoelectronics Progress
- Vol. 56, Issue 21, 211003 (2019)
Fig. 1. System design
Fig. 2. Original images of ceramic tile. (a) Crack in the tile head; (b) crack in the texture region
Fig. 3. Block diagram of detection algorithm. (a) Image preprocessing; (b) crack detection; (c) crack determination
Fig. 4. Image preprocessing of tile head area and texture area. (a) Original images; (b) red channel images; (c) median filtered images
Fig. 5. Defect detection for tile head area. (a) Filter template; (b) filtered image; (c) filter detection result
Fig. 6. Defect detection for texture area. (a) Seed point selection; (b) automatic region growth
Fig. 7. Detection results. (a) Morphological processing image of the tile head; (b) morphological processing image of the texture region
Fig. 8. Detection effects of different algorithms for tile head area. (a) Original image of tile head area; (b) maximum entropy; (c) sobel; (d) discrete wavelet transform; (e) proposed method
Fig. 9. Detection effects of different algorithms for texture regions. (a) Original image of texture region; (b) maximum entropy; (c) sobel; (d) discrete wavelet transform; (e) proposed method
|
Table 1. Detection accuracy of four algorithms
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20