نتایج جستجو برای: image watermarking
تعداد نتایج: 380005 فیلتر نتایج به سال:
Digital image watermarking is receiving widespread attention to protect applications of intellectual property rights. In image watermarking, information is embedded in cover image to prove ownership. This information must remain detectable even if image is manipulated. Applications of digital image watermarking include trusted cameras, journalistic photography, prevention of identity photo forg...
Digital watermarking is a good tool for healthcare information management systems. The wellknown quantization-index-modulationQIMbased watermarking has its limitations as the host imagewill be destroyed; however, the recovery ofmedical image is essential to avoidmisdiagnosis. A transparent yet reversible watermarking algorithm is required for medical image applications. In this paper, we propos...
Image watermarking refers to the process of embedding an authentication message, called watermark, into the host image to uniquely identify the ownership. In this paper a novel, intelligent, scalable, robust wavelet-based watermarking approach is proposed. The proposed approach employs a genetic algorithm to find nearly optimal positions to insert watermark. The embedding positions coded as chr...
Internet and Multimedia technologies have become our daily needs. Hence it has become a common practice to create copy, transmit and distribute digital data. Obviously, it leads to unauthorized replication problem. Digital image watermarking provides copyright protection to image by hiding appropriate information in original image to declare rightful ownership. Aim of this paper is to provide c...
Digital image watermarking is the process of encoding information into a digital image without deteriorating the visual quality of the image. Digital watermarking techniques are designed to withstand various attacks such as standard image processing operations, compression and geometric transformations. In this report we focus on watermarking of printed images and argue that this application re...
Copyright protection is considered as an issue of vital significance owing to the escalating utilization of internet and effortless copying, tampering and distribution of digital images. Digital watermarking methodologies are looked upon as a competent tool for safeguarding the digital images from copyright infringements issues. A number of researches in existence deal with copyright protection...
1 M. Tech Student 2 M. Tech (Ph. D) 1,2 Department of Computer Engineering 1,2 Galgotias University, Greater Noida, India Abstract— Digital watermarking is one of the proposed solutions for copyright protection of multimedia data. A watermark is a form of image or text that is impressed onto paper, which provides evidence of its authenticity. A digital watermark is digital data embedded in some...
Together with an explosive growth in the use of internet and high speed computer networks; the use of digitally formatted data has increased many folds i.e. the data can be easily plagiarized, modified or deleted without proper authentication and authorization. This has led to a need for effective copyright protection tools. Digital Watermarking promises to address these issues. This paper give...
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