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Artificial Intelligence · Mini Project
Real-Time Barcode & QR Reader
Decodes barcodes and QR codes from a webcam and logs every scan
1-2 weeks build
Overview
Reads EAN, UPC, Code 128 and QR codes from a live webcam feed using OpenCV and pyzbar, drawing a box and decoded value over each one. Every scan is written to SQLite with a timestamp and duplicate suppression, and a Flask page shows the history, exports it as CSV and works as a simple stock or attendance logger.
What makes it stand up
- 01Multiple barcode formats and QR decoded in real time
- 02Bounding boxes and decoded text drawn on the live feed
- 03Duplicate suppression so one item logs once
- 04Scan history with search and CSV export
- 05Preprocessing tips for blurred and low-light codes
Module breakdown
- 01
Capture
OpenCV webcam loop with frame skipping for speed.
- 02
Decoding
pyzbar decoding with contrast enhancement fallback.
- 03
Logging
SQLite table with timestamps and a cooldown window.
- 04
Dashboard
Flask history view with filters and export.
- 05
Testing
Sample codes and a read-rate checklist in the report.
After this, you will be able to
- Explain how a QR code stores data and corrects errors
- Discuss why duplicate suppression matters in a scanner
- Demo scanning products and QR codes live
Technology stack
- Python
- OpenCV
- pyzbar
- Flask
- SQLite
- Level
- Mini Project
- Domain
- Artificial Intelligence
- Build time
- 1-2 weeks
- Difficulty
You receive
- Complete, commented source code
- 60-90 page project report (IEEE format)
- Editable presentation deck
- Architecture, ER and UML diagrams
- Local setup and deployment guide
- Sample dataset or seed data
- Viva question bank with answers
- One 45-minute walkthrough call
- 30 days of doubt-clearing support