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3 October 2008 Inspection of electroplated gold
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Proceedings Volume 7155, Ninth International Symposium on Laser Metrology; 71552G (2008)
Event: Ninth International Symposium on Laser Metrology, 2008, Singapore, Singapore
Two aspects of electroplated gold that are often inspected on are plating thickness, and verification of gold presence at desired regions. With the later, in-situ reporting is desired. In this work, 8 color spaces - RGB, rgb, I1I2I3, HSI, YUV, YIQ, XYZ, and L*a*b* - were investigated to differentiate between regions with and without electroplated gold. It was found that the r, b, I2, H, U, V, I, Q, Z, and b* color space components provided distinct two level differentiability; while the R, G, and S color space components permitted differentiation at non distinct two levels. It was also uncovered that grayscale imaging would not permit any form of differentiation. The findings here indicate feasibility in using machine vision in tandem with color space analysis for electroplated gold inspection.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
T. W. Ng and F. Y. Yong "Inspection of electroplated gold", Proc. SPIE 7155, Ninth International Symposium on Laser Metrology, 71552G (3 October 2008);


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