Digital halftoning
Modern Digital Halftoning
Steganography in halftone images: conjugate error diffusion
Signal Processing - Special section: Security of data hiding technologies
A multi-bit robust watermark for halftone images
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
Data hiding in halftone images by stochastic error diffusion
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
Joint halftoning and watermarking
IEEE Transactions on Signal Processing
The effects of a visual fidelity criterion of the encoding of images
IEEE Transactions on Information Theory
Embedded multilevel error diffusion
IEEE Transactions on Image Processing
Image quality assessment based on a degradation model
IEEE Transactions on Image Processing
Hybrid pixel-based data hiding and block-based watermarking for error-diffused halftone images
IEEE Transactions on Circuits and Systems for Video Technology
Iterated conditional modes for inverse dithering
Signal Processing
Data hiding in a halftone image using hamming code (15, 11)
ACIIDS'11 Proceedings of the Third international conference on Intelligent information and database systems - Volume Part II
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This work proposes a novel technique, named embeddable cells selection (ECS), for embedding flexible amounts of data in a ready-made dithered halftone image, while still achieving good quality results. The encoder embeds the secret data in the high-frequency regions with nearly the same number of black and white pixels and low pixel connections. A blind decoding technique without prior knowledge of the original dithered image but with some side information is adopted in the decoder. The inverse halftoning and the second round of halftoning are the key steps in locating the embedded information bits. Experimental results demonstrate that an objective good quality image with flexible capacity and reasonable complexity is obtained. Moreover, the correct decoding rate of 100% is maintained, and the original host halftone image can also be reconstructed in the decoder. Furthermore, by recording the embedded positions, this method can guard against distortions caused by tampering, cropping, and print-and-scan attacks.