🎨 AI Hand Painter — Draw with Your Hand! 🖐️🖌️
A fun and interactive real-time hand drawing app built using OpenCV, NumPy, and MediaPipe.
Move your index finger in the air to draw — no mouse required! 🚀
🚀 Features
- 🖐️ Draw using your hand — Detects index finger and draws in real-time.
- 🎨 Dynamic canvas — Canvas automatically matches your webcam resolution.
- ♻️ Clear the canvas — Press
C anytime to clear your drawings.
- ❌ Exit easily — Press
Q to quit.
- 🧠 Intelligent finger tracking powered by MediaPipe Hands.
📂 Project File
ai_hand_painter.py — main script that runs the AI hand drawing app.
🧰 Requirements
Make sure you have the following Python libraries installed:
pip install opencv-python mediapipe numpy
💡 If installation fails, try upgrading pip:
pip install --upgrade pip
▶️ How to Run
- Connect your webcam.
- Open a terminal or VS Code terminal in your project folder.
- Run the script:
python ai_hand_painter.py
- Controls:
- 🧽 Press C → Clear the canvas
- 🚪 Press Q → Quit the program
🧩 How It Works
- Webcam Feed: Captures video using OpenCV.
- Hand Detection: MediaPipe detects 21 hand landmarks.
- Finger Tracking: Detects which fingers are up using custom logic.
- Drawing Mode:
- If only the index finger is up, it draws on the canvas.
- If multiple fingers are up, drawing stops.
- Canvas Merge: Blends live camera feed with your drawn strokes using
cv2.addWeighted().
✨ Future Enhancements
- 🖍️ Color palette for multiple pen colors
- 🧽 Eraser mode
- 📸 Save drawing as image file
- 🔊 Add voice commands for color and size control
- 🖼️ GUI interface with brush size slider
⚠️ Troubleshooting
- ❌ “Cannot access camera”:
Make sure your webcam is not used by another app.
- ⚠️ “Camera read failed”:
Try restarting your computer or checking permissions.
- 🧱 mediapipe not found:
Reinstall mediapipe using pip install mediapipe.
🧠 Credits
Built using:
📜 License
MIT License © 2025 — Feel free to use, modify, and share! 💚
🧠 “Where AI meets creativity — One hand at a time.”