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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/3130
Title: A capacity estimation technique for JPEG-to-JPEG image watermarking
Authors: Wong, Hon Wah
Au, Oscar C.
Keywords: Data compression
Data encapsulation
Discrete cosine transforms
Image coding
Parameter estimation
Visual perception
Watermarking
Issue Date: 2003
Citation: IEEE Transactions on Circuits and Systems for Video Technology, Aug. 2003, v. 13, no. 8, p.746-752
Abstract: In JPEG-to-JPEG image watermarking (J2J), the input is a JPEG image file. After watermark embedding, the image is JPEG-compressed such that the output file is also a JPEG file. In this paper, We use the human visual system (HVS) model to estimate the J2J data hiding capacity of JPEG images, or the maximum number of bits that can be embedded in JPEG-compressed images. Watson's HVS model is modified to estimate the just noticeable difference (JND) for DCT coefficients. The amount of modifications to DCT coefficients is limited by JND in order to guarantee the invisibility of the watermark. Our capacity estimation method does not assume any specific watermarking method and thus would apply to any watermarking method in J2J framework.
Rights: © 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
URI: http://hdl.handle.net/1783.1/3130
Appears in Collections:ECE Journal/Magazine Articles

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