Halftone visual cryptography via error diffusion
IEEE Transactions on Information Forensics and Security
The hybrid screen: improving the breed
IEEE Transactions on Image Processing
Parallel and element-reduced error-diffused block truncation coding
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Parallel and element-reduced error-diffused block truncation coding
IEEE Transactions on Communications
Watermarking in halftone images with parity-matched error diffusion
Signal Processing
Statistical approach for congestion control in gateway routers
Computer Networks: The International Journal of Computer and Telecommunications Networking
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In this paper, we introduce two novel techniques for digital color halftoning with green-noise-stochastic dither patterns generated by homogeneously distributing minority pixel clusters. The first technique employs error diffusion with output-dependent feedback where, unlike monochrome image halftoning, an interference term is added such that the overlapping of pixels of different colors can be regulated for increased color control. The second technique uses a green-noise mask, a dither array designed to create green-noise halftone patterns, which has been constructed to also regulate the overlapping of different colored pixels. As is the case with monochrome image halftoning, both techniques are tunable, allowing for large clusters in printers with high dot-gain characteristics, and small clusters in printers with low dot-gain characteristics