QR Dictionary Term
Error Correction Code (ECC)
Definition
A mathematical feature built into QR codes using Reed-Solomon algorithms that allows the code to be read correctly even if it is partially dirty, damaged, or covered by a custom logo.
Practical Example
Applying Level H (High) error correction (up to 30% restoration capacity) to safely insert a business logo at the center of the QR matrix.
Related Concepts
Frequently Asked Questions
What are the error correction levels?
QR codes support Level L (7%), Level M (15%), Level Q (25%), and Level H (30%) scannability protection capacities.