Adaptive semi-fragile watermarking based on complete quantization and image contents

Guo Wu, Dawei Wei, Guangming Tang, Jinfeng Yang
2013 Proceedings of the 2nd International Symposium on Computer, Communication, Control and Automation   unpublished
Complete quantization principle is proposed in this paper, based on which, an adaptive semi-fragile watermarking algorithm based on image contents is proposed. The algorithm uses the low frequency sub-band to construct watermarking related to the content of image, and then uses just noticeable difference of wavelet domain to embed watermarking by means of complete quantitative principle. Experiments show this algorithm can classify malicious and non-malicious manipulations accurately.
more » ... curately. Keywords-semi-fragile watermarking; quantization; image contents; wavelet coefficients I. 2, 2 −Δ Δ , the parity of quantized data can't be changed and the watermarking can be detected correctly. Fig.1 (b) and Fig.1 (c) show the adjusting schem of complete quantization principle 1 and 2 respectively. The theorem can be proved in the same way.
doi:10.2991/isccca.2013.67 fatcat:e2gajj4dazcnrbjt4tyfjc5j3m