The research on image encryption method based on parasitic audio watermark

Pei-pei Gao; Yao-ting Zhu; Shi-tao Zhang

doi:10.1117/12.870363

10 November 2010 The research on image encryption method based on parasitic audio watermark

Pei-pei Gao, Yao-ting Zhu, Shi-tao Zhang

Proceedings Volume 7850, Optoelectronic Imaging and Multimedia Technology; 785023 (2010) https://doi.org/10.1117/12.870363
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

In order to improve image encryption strength, an image encryption method based on parasitic audio watermark was proposed in this paper, which relies on double messages such as image domain and speech domain to do image encryption protection. The method utilizes unique Chinese phonetics synthesis algorithm to complete audio synthesis with embedded text, then separate this sentence information into prosodic phrase, obtains complete element set of initial consonant and compound vowel that reflects audio feature of statement. By sampling and scrambling the initial consonant and compound vowel element, synthesizing them with image watermark, and embedding the compound into the image to be encrypted in frequency domain, the processed image contains image watermark information and parasitizes audio feature information. After watermark extraction, using the same phonetics synthesis algorithm the audio information is synthesized and compared with the original. Experiments show that any decryption method in image domain or speech domain could not break encryption protection and image gains higher encryption strength and security level by double encryption.

Citation Download Citation

Pei-pei Gao, Yao-ting Zhu, and Shi-tao Zhang "The research on image encryption method based on parasitic audio watermark", Proc. SPIE 7850, Optoelectronic Imaging and Multimedia Technology, 785023 (10 November 2010); https://doi.org/10.1117/12.870363

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