Abstract
White modules of quick response codes (QR codes) are degraded by dot gain, especially when printed at smaller sizes, which results in more false blacks than false whites in error analysis, and also severely affects decoding ability. To reduce the false blacks generated from printing and to improve code readability, modifying the microstructure of graphic QR codes by reducing the size of the information dots is proposed. Experimental results show that the resultant QR code reduces the number of false blacks and thus the error rate. This method applies to the physical output of both conventional and graphic QR codes.
Original language | English |
---|---|
Pages (from-to) | 879-881 |
Number of pages | 3 |
Journal | Electronics Letters |
Volume | 57 |
Issue number | 23 |
DOIs | |
Publication status | Published - 2021 Nov |
Keywords
- Computer vision and image processing techniques
- Microstructure
- Optical storage and retrieval
- error analysis
- error correction
- image processing
- image recognition
- printing
- quick response codes
ASJC Scopus subject areas
- Electrical and Electronic Engineering