This is what the old CAPTCHA system from Google did. https://en.wikipedia.org/wiki/ReCAPTCHA#ReCAPTCHA_v1_(human-assisted_OCR) https://en.wikipedia.org/wiki/Re

This is what the old CAPTCHA system from Google did. https://en.wikipedia.org/wiki/ReCAPTCHA#ReCAPTCHA_v1_(human-assisted_OCR) https://en.wikipedia.org/wiki/ReCAPTCHA#ReCAPTCHA_v1_(human-...