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"FaceDCAPTCHA: Face detection based color image CAPTCHA."
Gaurav Goswami et al. (2014)
- Gaurav Goswami, Brian M. Powell, Mayank Vatsa, Richa Singh, Afzel Noore:
FaceDCAPTCHA: Face detection based color image CAPTCHA. Future Gener. Comput. Syst. 31: 59-68 (2014)
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