Image content authentication technique based
on Laplacian Pyramid

doi:10.1007/s11460-008-0046-y

Front. Electr. Electron. Eng.

2008, Vol. 3

Issue (2) : 188-193 https://doi.org/10.1007/s11460-008-0046-y

Image content authentication technique based on Laplacian Pyramid

WO Yan, HAN Guoqiang

School of Computer Science and Engineering, South China University of Technology;

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Abstract This paper proposes a technique of image content authentication based on the Laplacian Pyramid to verify the authenticity of image content. First, the image is decomposed into Laplacian Pyramid before the transformation. Next, the smooth and detail properties of the original image are analyzed according to the Laplacian Pyramid, and the properties are classified and encoded to get the corresponding characteristic values. Then, the signature derived from the encrypted characteristic values is embedded in the original image as a watermark. After the reception, the characteristic values of the received image are compared with the watermark drawn out from the image. The algorithm automatically identifies whether the content is tampered by means of morphologic filtration. The information of tampered location is p resented at the same time. Experimental results show that the proposed authentication algorithm can effectively detect the event and location when the original image content is tampered. Moreover, it can tolerate some distortions produced by compression, filtration and noise degradation.

Issue Date: 05 June 2008

Cite this article:

HAN Guoqiang,WO Yan. Image content authentication technique based on Laplacian Pyramid[J]. Front. Electr. Electron. Eng., 2008, 3(2): 188-193.

URL:

https://academic.hep.com.cn/fee/EN/10.1007/s11460-008-0046-y
https://academic.hep.com.cn/fee/EN/Y2008/V3/I2/188

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