QIM-DM watermarking optimization based on inter-frequency contrast masking in the DCT domain

Author

Battisti, Federica ; Carli, Marco ; Neri, Alessandro

Author_Institution

Appl. Electron. Dept., Univ. of Roma TRE, Rome, Italy

fYear

2009

fDate

6-9 Dec. 2009

Firstpage

11

Lastpage

15

Abstract

In this paper a watermarking scheme based on the human visual system (HVS) is presented. A quantization index modulation - dither modulation scheme is used in the discrete cosine transform domain for the embedding. The watermark quantization step is selected according to the inter-frequency masking effect computed by using a HVS-inspired objective image quality metric. Experimental results demonstrate the effectiveness and the robustness of the proposed solution.

Keywords

discrete cosine transforms; image coding; optimisation; quantisation (signal); watermarking; DCT domain; HVS-inspired objective image quality metric; QIM-DM watermarking optimization; discrete cosine transform; dither modulation scheme; human visual system; inter-frequency contrast masking; quantization index modulation; watermark quantization step; Digital modulation; Discrete cosine transforms; Humans; Image quality; Protection; Quantization; Robustness; Sequences; Visual system; Watermarking; Digital watermarking; PSNR-HVS; Quantization Index Modulation; perceptual quality metrics;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Forensics and Security, 2009. WIFS 2009. First IEEE International Workshop on

Conference_Location

London

Print_ISBN

978-1-4244-5279-8

Electronic_ISBN

978-1-4244-5280-4

Type

conf

DOI

10.1109/WIFS.2009.5386491

Filename

5386491