Visual Reasoning CAPTCHAs

Visual Reasoning CAPTCHAs

AnalogClockCaptcha

Draws an analog clock and asks for the displayed time.

Returns: ChallengeResult; answer format is HH:MM.

Key parameters: minute_step, show_numbers, twenty_four_hour_answer.

Example: Examples/CaptchaExamples/AnalogClockCaptcha/

Perspective3DCaptcha

Draws a labeled 3D-style object and asks for the label on a requested face.

Returns: ChallengeResult.

Key parameters: labels, ask_face, skew.

Example: Examples/CaptchaExamples/Perspective3DCaptcha/