1. Liu, Z., Qu, B.: Machine vision based online detection of PCB defect. Microprocess. Microsyst. 82, 103807 (2021)
2. Ibrahim, Z., Al-Attas, S.A.R.: Wavelet-based printed circuit board inspection system. Int. J. Signal Process. 1(1), 73–79 (2004)
3. Khalid, N.K., Ibrahim, Z., Abidin, M.S.Z.: An algorithm to group defects on printed circuit board for automated visual inspection. Int. J. Simul. Syst. Sci. Technol. 9(2), 1–10 (2008)
4. Putera, S.H.I., Ibrahim Z.: Printed circuit board defect detection using mathematical morphology and MATLAB image processing tools. In: 2010 2nd international conference on education technology and computer. IEEE, 5: V5-359-V5-363 (2010)
5. Ibrahim, I., Ibrahim, Z., Khalil, K., et al.: An algorithm for classification of five types of defects on bare printed circuit board. Int. J. Comput. Sci. Eng. Syst. 5(3), 201–208 (2011)