Title :
A blind wavelet based digital signature for image authentication
Author :
Liehua Xie ; Arce, Gonzalo R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Delaware, Newark, DE, USA
Abstract :
A content based digital image signature scheme for image authentication is proposed. The signature is implemented by image watermarking in the wavelet domain. We introduce interdependency between the watermark and the image data sequence, so that the detection and verification of the signature are independent of the original image and the knowledge of the original watermark sequence or location are not needed. The signature is embedded and tested within the Entropy Zerotree Wavelet Coding (EZW) model. The information capacity of the algorithm is determined.
Keywords :
cryptographic protocols; digital signatures; handwriting recognition; image sequences; image watermarking; wavelet transforms; EZW model; blind wavelet-based digital signature; content-based digital image signature scheme; entropy zerotree wavelet coding model; image authentication; image data sequence; image watermarking; signature detection; signature verification; Bit rate; Digital signatures; Image coding; Noise; Quantization (signal); Watermarking; Wavelet transforms;
Conference_Titel :
Signal Processing Conference (EUSIPCO 1998), 9th European
Conference_Location :
Rhodes
Print_ISBN :
978-960-7620-06-4
