✋ Virtual Drawing Board with AI Integration

An interactive hand-tracking project using computer vision and AI to draw on a virtual canvas and generate intelligent responses. This system allows users to draw with hand gestures and receive AI-generated answers based on the drawing — whether it's identifying a sketch or solving a handwritten math problem.

---

🎯 Project Features

• ✅ Real-time hand tracking using cvzone and MediaPipe

• ✅ Virtual drawing with index finger gesture

• ✅ Canvas clearing with open palm gesture

• ✅ AI-powered recognition using Gemini (Google Generative AI)

• ✅ Task switch between:

  • "Guess the drawing" 🖼️
  • "Solve the math problem" ➗

• ✅ Stylish interactive UI using Streamlit with custom dark theme

---

🧠 How It Works

Gesture	Action
☝️ Index Finger Up	Draws on canvas
✋ All Fingers Up	Clears the canvas
🤙 Pinky Finger Only	Triggers AI model to interpret canvas

1. Uses your webcam to track your hand.
2. Detects finger patterns to perform actions.
3. Sends the drawing as an image to Gemini AI.
4. Displays the AI’s interpretation on-screen.

---

🚀 Technologies Used

• Python
• OpenCV
• cvzone / MediaPipe
• Streamlit
• PIL
• NumPy
• Google Generative AI (Gemini)

---

📦 Installation Instructions

# Clone the repository
https://github.com/yourusername/virtual-drawing-board.git
cd virtual-drawing-board

# Install dependencies
pip install -r requirements.txt

# Start the Streamlit app
streamlit run app.py

---

🧪 File Structure

virtual-drawing-board/
│
├── app.py               # Main Streamlit application
├── requirements.txt     # Required Python packages
├── assets/              # Images / gifs for README display
└── ...

---

⚙️ Configuration

To use Google Gemini AI, configure your API key:

genai.configure(api_key="your-api-key-here")

🔐 Never commit your API key to version control.

---

🧪 Example Tasks

Task	Action
Draw a cat	Select "Guess the drawing"
Write "3 + 4 * 5"	Select "Solve the math problem"

---

🙌 Acknowledgements

• cvzone by Murtaza Hassan
• Google Generative AI
• Streamlit

---

📜 License

MIT License. You’re free to use and modify this project with attribution.

---

💡 Future Improvements

• Add hand gesture calibration
• Save drawings as PNG
• Extend gesture vocabulary
• Support drawing multiple colors

---

✍️ Author

Tenura Pinsara

Inspired by creativity and powered by AI.