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"Skeletonization of Deformed CAPTCHAs Using Pixel Depth Approach."
Jingsong Cui et al. (2011)
- Jingsong Cui, Lu Liu, Gang Du, Ying Wang, Qianqi Guan:
Skeletonization of Deformed CAPTCHAs Using Pixel Depth Approach. J. Multim. 6(6): 526-533 (2011)
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