Covert Communication via the QR Code Image by a Data Hiding Technique Based on Module Shape Adjustments.
Da-Chun WuYuan-Ming WuPublished in: IEEE Open J. Comput. Soc. (2020)
Keyphrases
- data hiding
- data hiding scheme
- secret data
- watermarking technique
- input image
- data embedding
- image data
- multiscale
- cover image
- reversible data hiding
- image segmentation
- image structure
- error correction
- test images
- spatial domain
- hough transform
- edge detection
- jpeg images
- halftone images
- pixel values
- barcode
- secret key
- digital images
- wavelet transform