7. CONCLUSION

Due to ease in the availability of digital media, watermarking them has become an important issue for digital right management and tamper proofing. A brief survey of different watermarking techniques has been carried out in this paper. Further, wavelet based tamper proofing of images has been successfully carried out and the results are presented in this paper. Attacks based on averaging filter and compression were applied and the tampering was successfully detected by the proposed technique in all the cases.

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