Detailed Definition
Error correction uses Reed-Solomon algorithms to add redundant data blocks to a QR code. This capability allows scanner engines to reconstruct missing information if parts of the graphic are obscured.
Glossary HubQR Codes
What is QR Error Correction?
A QR feature allowing scans to succeed even if the code is partially damaged or covered.
1 min read•Updated 2026-06-08
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Practical Example
Code/Output blockError correction levels: L (7%), M (15%), Q (25%), H (30%).
Why It Matters
Error correction enables QR customization. Designers can place company logos, graphics, or text in the center of the QR grid without breaking scannability.
Common Use Cases
1
Placing company brand marks inside QR code layouts safely
2
Ensuring outdoor poster barcodes scan even when scratched or weathered
3
Maintaining scan speeds on packaging with folded or glossy surfaces
Frequently Asked Questions
High (H) or Quartile (Q) is recommended, allowing up to 30% or 25% damage recovery.
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