GestureDraw AI is a real-time, AI-powered virtual canvas that enables users to draw using just their hand gestures via webcam. It supports brush color/size customization, undo/redo, and the ability to save and resume artwork. Powered by MediaPipe, OpenCV, and PyQt5, this tool is ideal for intuitive, touch-free interaction.
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✋ Gesture-Based Drawing
- Detects hand gestures using MediaPipe
- Index-thumb pinch gesture used to draw
- Cursor mode for interaction; draw mode for sketching
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🎨 Dynamic Brush & Canvas
- Change brush color and size on the fly
- Smooth stroke rendering with OpenCV
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🔁 Undo/Redo & Resume
- Undo or redo previous strokes
- Resume and continue your previous drawing session
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💾 Export Work
- Save your artwork as
.jpgimages - Edit saved images seamlessly
- Save your artwork as
| Component | Technology |
|---|---|
| Language | Python 3.x |
| Gesture Detection | MediaPipe |
| Drawing Engine | OpenCV |
| GUI Framework | PyQt5 |
| Image Handling | NumPy, OpenCV |
| Undo/Redo Logic | Python deque |
- Launch the app – your webcam feed opens.
- Perform the pinch gesture (index + thumb) to start drawing.
- Use UI buttons to:
- Switch between Cursor/Draw Mode
- Change color or adjust brush size
- Undo or redo strokes
- Save your canvas or load previous work
- Python 3.7 or later
- Webcam
- Basic GPU for real-time performance
pip install opencv-python mediapipe pyqt5 numpy