Virtual Painter

A real-time hand tracking drawing app using MediaPipe and OpenCV.

Control a virtual brush using your fingers through your webcam.

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Features

• Draw in air using your index finger
• Smooth strokes (no jitter)
• Adjustable brush thickness
• Color selection using on-screen bar
• Eraser mode
• Full hand tracking overlay (for visualization)

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Tech Stack

• Python
• OpenCV
• MediaPipe (Tasks API)

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Controls

Gesture	Action
Index finger up	Draw
Index + Middle	Select color (top bar)
Thumb + Index	Adjust brush thickness
Fist	Clear canvas

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Setup

1. Clone the repo

git clone https://github.com/sudeepmukul/Virtual-Painter-.git
cd Virtual-Painter-

2. Create virtual environment (optional but recommended)

python -m venv venv
venv\Scripts\activate

3. Install dependencies

pip install opencv-python mediapipe numpy

4. Download model file

Download this file and place it in the project folder:

https://storage.googleapis.com/mediapipe-models/hand_landmarker/hand_landmarker/float16/latest/hand_landmarker.task

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Run

python Virtual_Painter.py

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Notes

• Works best with good lighting
• Keep hand fully visible for stable tracking
• If tracking feels shaky, move slower

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Future Improvements

• Save drawings
• Undo/redo gestures
• Better UI (floating palette)
• Multi-hand support

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👤 Author

Made by Sudeep <3