digital watermark
Embedding and Extracting Digital Watermark Based on DCT Algorithm
... of digital watermark is the method of adding digital watermark in the frequency ...The digital watermark hides the watermark in digi- tal media, such as image, voice, ...
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A Novel Approach to Improve Invisibleness and Robustness of a Digital Watermark in CopyrightProtection
... in digital communication techniques and allows large volumes of multimedia signal ...The digital contents such as images, audio and video files are prone to digital piracy as they are easy to copy ...
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MLP Neural Network to improve Digital Watermark detection in gray scale images
... aims digital watermark detection and blind threshold computing is proposed in [13], this model uses pre-processing tools such as pre-detection filtering and geometrical distortions ...
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Cognitive computation of compressed sensing for watermark signal measurement
... generating digital watermark for satisfying security ...methodology, watermark signal is extracted from the CS of the Hadamard measurement ...the watermark signal in CS domain is achieved ...
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A Robust and Secure Method of Copyright Protection for Digital Videos using Split Watermark Embedding Algorithm : SWEA Jabir Ali, Prof. S.P. Ghrera
... domestic digital copyright protection products basically depends on real network and Microsoft windows ...of digital watermark or digital pattern (text, image, audio or video) is inserted ...
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A Fragile Watermark Method for Improving Medical Images Security
... in digital watermark ...embedding watermark information, this paper proposes the designing scheme of water information ...as watermark information of this image ...to watermark ...
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Fast Watermark Synchronization Based on Complementary Templates
... A recent trend of the digital watermark requires not only the robustness but also speed. To achi- eve these requirements, we propose a watermark synchronization scheme based on two kinds of ...
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Embedding Watermark in Wavelet Domain Using Chaotic Sequence
... term Digital watermark was first used by Komatsu and Tominaga in ...However, digital watermarking did not receive substantial interest as a research topic until the ...in digital systems for ...
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Positioning of Visible Watermark based on Variance
... Digital watermark is an art of putting some information for the protection of digital media from unauthorized ...of digital data moreover digital data can also be duplicated and ...
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Watermark based Copyright Protection for Relational Database
... with digital watermark which arouses the researchers’ interests on watermarking ...of watermark, to calculate and find specific mark bit location, the algorithm will have a problem if length of ...
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DIGITAL IMAGE WATERMARKING USING ELLIPSE WATERMARK
... Digital watermarking is the method of embedding a digital watermark with any digital document or content which can be an image, text, audio, video ...a digital watermark on the ...
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An audio watermark-based speech bandwidth extension method
... audio watermark The block diagram of the proposed BWE method is shown in Figure 1, including quadrature mirror filter (QMF) based analysis filter bank, down-sampler, HF parame- ters extractor, ...encoder, ...
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COPYRIGHT PROTECTION FOR RGB WATERMARK IMAGE USING IN LSB
... image. Digital watermarking is one of the proposed solutions for copyright protection of multimedia ...A watermark is a form, image or text that is impressed onto paper, which provides evidence of its ...
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A Watermark Algorithm against De-Synchronization Attacks
... Authors embedded [21] an additional template together with the watermark in the DFT domain. This template contains no information about the embedded message but could be later used to recover the transformation ...
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Stochastic Image Warping for Improved Watermark Desynchronization
... the watermark is inserted into the middle frequency coe ffi cients of the full-frame DCT ...the watermark X is embedded in the last M coefficients T = { t(L + 1), ...
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Enhancing Authorization of XML File Using Watermark
... the watermark increases the robustness. The advantage is that watermark can be recovered from any watermarked ...describes watermark extraction process ...
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Reverse-Engineering a Watermark Detector Using an Oracle
... known watermark detector, can one deduce the underlying algorithm from its output? This can also be attacked using adaptive inputs to a detector, except in this case the inputs are not used to find a better image, ...
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Optimal watermark embedding combining spread spectrum and quantization
... optimal watermark embedding method has been developed by combining spread spectrum and quantization techniques with the embedding distortion ...on watermark decoding and detection. Based on the method, a ...
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Watermark Detection and Extraction Using Independent Component Analysis Method
... 9g, 9h, and 9i are the extracted images with row-wise scan- ning order. The performance measured in normalized correla- tion coefficient is shown in Table 5. From this example, it has been observed that the row-wise ...
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Survey on Image Protection and Self-Recovery Using Watermark Algorithm
... purposes. Digital watermarking has attracted considerable attention and has numerous applications, including copyright protection, authentication, secret communication, and measurement [4], ...
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