A Watermarking Method for Printed QR Code Based on Module Expansion.
Cai-Jie WengJeng-Shyang PanShi-Jian LiuMei-Jin WangPublished in: IIH-MSP (1) (2018)
Keyphrases
- qr code
- watermarking method
- qr codes
- barcode
- watermarking algorithm
- mobile phone
- augmented reality
- acquired images
- watermarking scheme
- digital watermarking
- jpeg compression
- copyright protection
- hough transform
- signal processing
- image acquisition
- jpeg images
- image watermarking
- dct coefficients
- spread spectrum
- lossy compression
- error correction
- wavelet domain
- video sequences
- digital images