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"Halftone QR codes."
Hung-Kuo Chu et al. (2013)
- Hung-Kuo Chu, Chia-Sheng Chang, Ruen-Rone Lee, Niloy J. Mitra:
Halftone QR codes. ACM Trans. Graph. 32(6): 217:1-217:8 (2013)
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