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📱 Scan QR Code

A focused demo for scanning QR codes from camera video or static images using the Dynamsoft Barcode Reader (JavaScript edition). Demonstrates QR-specific tuning and configuration.

Included files

  • index.html — demo page (camera & image input).
  • ReadQR.json — sample configuration/template used by the demo.

✨ Features

  • Targeted QR decoding for improved performance
  • Camera and static image input support
  • Loadable JSON configuration for decoder settings

🔧 How it works

  • The demo configures the scanner to prioritize QR decoding and applies ROI/resolution adjustments for common QR scenarios.
  • Decoded payloads are displayed; configuration can be adjusted via ReadQR.json.

Quick start

Opening HTML files directly may not work as expected. Instead, run a local development server. Here’s a quick method using Visual Studio Code:

  1. Install the Five Server extension from the VS Code Marketplace.

  2. Right-click on index.html and select "Open with Five Server".

💡 Tips

  • For small QR symbols increase camera resolution or reduce ROI.
  • Good lighting and steady framing improves decode reliability.

📌 Notes

  • Serve via localhost/HTTPS for camera permissions.
  • Replace trial/demo license with a valid Dynamsoft license for extended use.