DocumentCode :
1650735
Title :
A Novel Image Content Authentication Algorithm Based on Laplace Spectra Feature
Author :
Wanli, Lv ; Yutang, Guo ; LuoBin
Author_Institution :
Anhui Univ., Hefei
fYear :
2007
Firstpage :
265
Lastpage :
269
Abstract :
A novel image content authentication algorithm based on Laplace spectra was proposed. Outstanding feature points are extracted from the original image and a cipher point is inserted. A relational graph is then built, and the Laplace spectra of the graph are calculated to serve as image features. The Laplace spectra are quantized then embedded into the original image as a watermark. In the authentication step, the Laplace spectra of the authenticating image are calculated and compared with that of the watermark embedded in the authenticating image. If both of the spectra are identical, the image passes the authentication test. Otherwise, the tamper is found. The experimental results show that the proposed authentication algorithm can effectively detect the event and the location when the original image content is tampered viciously.
Keywords :
Laplace equations; feature extraction; graph theory; image coding; message authentication; watermarking; Laplace spectra feature; cipher point; feature points extraction; graph Laplace spectra; image content authentication algorithm; image features; watermark; Authentication; Computer science education; Cryptography; Event detection; Feature extraction; Hafnium; Internet; Signal processing algorithms; Testing; Watermarking; Encrypt; Image Authentication; Laplace Spectra; Watermark;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Conference, 2007. CCC 2007. Chinese
Conference_Location :
Hunan
Print_ISBN :
978-7-81124-055-9
Electronic_ISBN :
978-7-900719-22-5
Type :
conf
DOI :
10.1109/CHICC.2006.4347312
Filename :
4347312
Link To Document :
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