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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/1959
Title: Data hiding for halftone images
Authors: Fu, Ming Sun
Au, Oscar C.
Keywords: Data hiding
Halftone image
Watermarking
Ordered dithering
Error diffusion
Toggling
Issue Date: Jan-2000
Citation: Security and Watermarking of Multimedia Contents II, Ping Wah Wong, Edward J. Delp, Editors, Proceedings of SPIE Vol. 3971, p. 228-236 (2000)
Abstract: With the ease of distribution of digital images, there is a growing concern for copyright control and authentication. While there are many exiting watermarking and data hiding methods for natural images, almost none can be applied to halftone images. In this paper, we proposed two novel data hiding methods for halftone images. The proposed Data Hiding Pair-Toggling (DHPT) hides data by forced complementary toggling at pseudo-random locations within a halftone image. It is found to be very effective for halftone images with relatively coarse textures. For halftone images with fine textures (such as error diffusion with Steinberg kernel), the proposed Data Hiding Error Diffusion (DHED) gives significantly better visual quality by integrating the data hiding into the error diffusion operation. Both DHPT and DHED are computationally very simple and yet effective in hiding a relatively large amount of data. both algorithms yield halftone images with good visual quality.
Rights: Copyright 2000 Society of Photo-Optical Instrumentation Engineers. This paper was published in Security and Watermarking of Multimedia Contents II, Ping Wah Wong, Edward J. Delp, Editors, Proceedings of SPIE Vol. 3971, p. 228-236 (2000) and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
URI: http://hdl.handle.net/1783.1/1959
Appears in Collections:ECE Conference Papers

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