An Efficient Dispute Resolving Method for Digital Images
نویسندگان
چکیده
Resolving rightful ownerships of digital images is an active research area of watermarking. Though a watermark is used to prove the owner’s ownership, an attacker can invalidate it by creating his fake original image and its corresponding watermark. This kind of attack is called ambiguity attack and can be tackled either by use of non-invertible watermarking schemes or by use of zero-knowledge watermark detections. If a non-invertible watermarking scheme is used, then the owner should reveal her original image which should be kept secret. And if a zero-knowledge watermark detection is used, then no one can verify the claimed ownership unless the owner is involved. Moreover, in case of zero-knowledge watermark detection, the protocol is relatively complicated and needs more computations. In this paper, using the MSBs string of the original image other than the original image itself, we propose an efficient dispute resolving method while preserving secrecy of the original image.
منابع مشابه
Advanced techniques for dispute resolving and authorship proofs on digital works
Digital watermarking is a promising technology for protecting intellectual property rights on digital content. Resolving authorship-disputes was one of the first and most propelling applications of robust digital watermarks, and much research effort has gone into protocols for resolving authorship-disputes by means of digital watermarks. Unfortunately, previous proposals lack formal definitions...
متن کاملParallelization of Rich Models for Steganalysis of Digital Images using a CUDA-based Approach
There are several different methods to make an efficient strategy for steganalysis of digital images. A very powerful method in this area is rich model consisting of a large number of diverse sub-models in both spatial and transform domain that should be utilized. However, the extraction of a various types of features from an image is so time consuming in some steps, especially for training pha...
متن کاملA Proposed Simple Teleradiology System Using a Digital Camera
Background & Aims: Teleradiology as an efficient way for avoiding unnecessary transfer of patients to special medical centers requires the images with digital format. However, in some developing countries, including Iran, imaging is being done using non digital devices. In such cases, changing analog images into digital ones can solve the problem. The method which is nowadays used for digita...
متن کاملAcademic Director Graduate School of Business Leadership University of South Africa South Africa the Emergence of Alternative Dispute Resolution in South Africa: a Lesson for Other African Countries
Disputes are an inevitable event in all facets of life and in the same vein it permeates society, from family quarrels to multinational corporate clashes. The dynamics of today society which revolve around competition, misunderstandings, wrongful termination of contracts, product liability and hostility among communities have contributed greatly to the endemic nature of dispute in our society. ...
متن کامل