Digital halftoning
Hiding Data in Ordered Dithering Halftone Images by Bit Interleaving
IIH-MSP '07 Proceedings of the Third International Conference on International Information Hiding and Multimedia Signal Processing (IIH-MSP 2007) - Volume 01
Senary Huffman compression - a reversible data hiding scheme for binary images
MCAM'07 Proceedings of the 2007 international conference on Multimedia content analysis and mining
A lossless watermarking technique for halftone images
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part II
Reversible watermarking for error diffused halftone images using statistical features
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
IEEE Transactions on Multimedia
Data hiding watermarking for halftone images
IEEE Transactions on Image Processing
IEEE Transactions on Circuits and Systems for Video Technology
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In this paper, we propose a reversible data hiding method for ordered dithered halftone images. To achieve reversibility and high capacity, the proposed method decomposes an ordered dithered halftone into a maximal number of subimage pairs with the same characteristic, and then hides data with a subimage-swapping operation, which converts a subimage pair into a subimage pair with opposite characteristic. Besides, this method maintains good visual quality by exchanging neighboring pixels instead of flipping individual pixels. Experimental results show that this method has the highest capacity among the existing reversible data hiding methods. A reversible authentication watermarking system is also proposed using this reversible watermarking method and it shows better visual quality compared to an existing method.