Fundamentals of digital image processing
Fundamentals of digital image processing
Elements of information theory
Elements of information theory
Color image processing and applications
Color image processing and applications
The Choice of Watermark Domain in the Presence of Compression
ITCC '01 Proceedings of the International Conference on Information Technology: Coding and Computing
IEEE Transactions on Information Theory
Digital watermarking for copyright protection of MPEG2 compressed video
IEEE Transactions on Consumer Electronics
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
A new, fast, and efficient image codec based on set partitioning in hierarchical trees
IEEE Transactions on Circuits and Systems for Video Technology
Genetic algorithm based steganography using wavelets
ICISS'07 Proceedings of the 3rd international conference on Information systems security
Accurate reversible color-to-gray mapping algorithm without distortion conditions
Pattern Recognition Letters
Securing color information of an image by concealing the color palette
Journal of Systems and Software
Increasing image compression rate using steganography
Expert Systems with Applications: An International Journal
Dual-purpose semi-fragile watermark: Authentication and recovery of digital images
Computers and Electrical Engineering
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Traditionally, data hiding and compression have had contradictory goals. The former problem adds perceptually irrelevant information in order to embed data, while the latter removes this irrelevancy and redundancy to reduce storage requirements. In this paper, we use data hiding to help improve signal compression. We take an unconventional approach and consider "piggy-backing" the color information on the luminance component of an image for improved color image coding. Our new technique essentially transforms a given color image into the YIQ color space where the chrominance information is subsampled and embedded in the wavelet domain of the luminance component. Our technique can be used as preprocessing to improve the performance of popular image compression schemes such as SPIHT that are optimized for grayscale image compression. Simulation results demonstrate the superior performance of the proposed technique in comparison to JPEG and straightforward SPIHT.