A secure authentication watermarking for halftone and binary images.
Hae Yong KimAmir AfifPublished in: Int. J. Imaging Syst. Technol. (2004)
Keyphrases
- binary images
- gray scale
- fragile watermarking
- image authentication
- authentication scheme
- user authentication
- authentication mechanism
- data encryption
- data hiding
- digital watermarking
- authentication protocol
- security analysis
- factor authentication
- security requirements
- security mechanisms
- connected components
- mathematical morphology
- gray scale images
- error diffusion
- inverse halftoning
- copyright protection
- watermarking scheme
- color images
- digital images
- smart card
- gray level images
- binary patterns
- binary and gray scale
- spread spectrum
- gray level
- halftone images
- jpeg compression
- component labeling
- watermarking algorithm
- key management
- input image
- error correction
- public key
- thinning algorithm
- spatial domain
- morphological skeleton
- frequency domain
- gray images
- multiresolution
- multiscale