Neon Hand Yoyo Effect

A real-time, interactive hand-tracking yoyo/particle effect using OpenCV and MediaPipe.
Features glowing comet orbs, neon edge outlines, and dynamic group physics—all controlled by your hand gestures!

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Features

• Real-time hand tracking (MediaPipe)
• Neon edge outlines of all objects (Canny edge detection)
• Glowing comet orbs that detach and return with physics
• Group catch/release dynamics (all orbs move together)
• Smooth transitions and visual effects

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Requirements

• Python 3.8+
• opencv-python
• mediapipe
• numpy

Install dependencies:

pip install -r requirements.txt

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Usage

python3 yoyo.py

• Press q to quit.
• Set FANCY_MODE = True at the top of yoyo.py for the neon/edge effect, or False for the regular camera view.

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Controls & Gestures

• Throw: Open your hand quickly to fling the orbs away.
• Catch: Bring your fingers together to zip all orbs back and merge into a single glowing red ball.
• Orbs: Neon blue when floating, neon red when caught.

Note: Works best when hand is 2-3 feet from camera.

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Customization

• Tweak FANCY_MODE, colors, and physics parameters in yoyo.py for different effects.
• Try different hand gestures for creative results!

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Credits

• OpenCV
• MediaPipe
• Inspired by creative coding and AR/vision art.

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Made with ❤️ and computer vision magic!