Fragile Watermarking Scheme for Images in Transform Domain
Nitish Agarwal
Nitish Agarwal, Electrical and Computer Department, University Of Waterloo, Waterloo, Canada.
Manuscript received on may 12, 2012. | Revised Manuscript received on June 08, 2012. | Manuscript published on June 30, 2012. | PP: 153-156 | Volume-1 Issue-5, June 2012 | Retrieval Number:  E0455061512/2012©BEIESP

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Abstract: Watermarking had an explosive amount of work done in the past decade. The field has diverse application areas, and a large number of fields amalgamate to ensure different requirement in different circumstances is being met by watermarking. We will be focusing in this paper mainly on the techniques which come under authenticating an image as to see if the image which is being used as a proof is not tampered in any way. This comes as the subset named as fragile watermarking in the field of watermarking techniques. We propose a novel method which focuses mainly on JPEG format of images and takes the lossy compression into consideration. The method works for both grayscale as well as the color images. 
Keywords: Watermarking, Fragile Watermarking, Image Authentication, Transform Domain, JPEG, Hash, MD5, Digital Signature Algorithm, HMAC.