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Metal stamping character recognition algorithm based on multi-directional illumination image fusion enhancement technology

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Academic year: 2020

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Fig. 1 a–g Image acquisition system and image samples obtained under multiple illumination directions
Fig. 2 a–c Result of image background extraction and comparison of scan lines from the original and background images
Fig. 3 a, b Image gray values at a typical scan line
Fig. 5 a–d Character string location and segmentation
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