Abstract
Color restoration of printed circuit board (PCB) images is an important part of the display module in three-dimensional solder paste inspection (3D SPI) systems. Accurate color information can show users images that reflect true PCB colors and provides important data for texture mapping when displaying realistic solder paste models [1]. In real-time imaging systems, such as black and white industrial cameras, accurate color restoration is an arduous task because of changeable imaging conditions [2]. Moreover, complex production environment of PCBs brings greater challenges. In order to overcome the above difficulties, we proposed new color restoration method to obtain accurate color information of PCBs utilizing customized PCB Dataset and PCB ColorChecker. The experimental results demonstrate that the new method improves both accuracy and efficiency.
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