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33 articles for “Digital watermarks”
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Audio Watermarking an Effective Solution to Hide Secret Data Behind Audio
Abstract: In this paper, we stated the study of audio watermarking done by different methods perfectly. Here, we study how different data can hide behind audio using different strategies. We study different concept of discrete wavelet transform, singular value decomposition, EMD, spread spectrum, discrete cosine transform for the development of audio watermarking. We analyze different methods and noted down different comparison among them.Cite this ArticleDheber DP, Kamdar DG. Audio Watermarking an …
Published in Journal of Open Source Developments · Vol. 2, Issue 3, 2015 · pp. 27–32 Read article
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Various Techniques of Optical Watermarking
Abstract: This paper includes the detail study of Digital watermarking explanation, concept and the main contributions in this field such as categories of watermarking process that tell which watermarking method be used. It starts with introduction, technology, applications, characteristics, attacks and techniques. In this survey, our most important apprehension is image only. Cite this Article:Hemlata Arya. Various Techniques of Optical Watermarking. Journal of Open Source Developments. 2015; 2(1): 13–19p.
Published in Journal of Open Source Developments · Vol. 2, Issue 1, 2015 · pp. 13–19 Read article
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Integrity Protection of Text Document Data from Unauthorized Modifications
Abstract: Digital watermarking provides authentication, validation and copyright protection for multimedia contents over the internet. Text is the most widely used means of communication in addition to image, audio and video. So it needs to be protected. Text watermarking techniques that have been developed in the past protects the text from illegal copying, imitation, and prevents copyright violations. In this paper, we have proposed an algorithm that ensures the integrity and …
Published in Journal of Advanced Database Management & Systems · Vol. 1, Issue 3, 2014 · pp. 1–5 Read article
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Enrichment of Storage Capacity of QR Codes Using Colored Approach
Abstract: Copyright protection and authentication is increasing and becoming important in daily life. The digitized watermark is one of the techniques invented to solve this issue. Maximum storage capacity of QR code with the use of only two colors i.e. black and white is maximum up to 4296 characters in version 40. This capacity of QR can be further enhanced by the utilization of more colors with black and white, which …
Published in Journal of Software Engineering Tools & Technology Trends · Vol. 3, Issue 2, 2016 · pp. 15–20 Read article
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Video Watermark for Text Data Using QR Code
Abstract: In the current era, data security is most important and so is copyright protection. By using this project, the user can secure his data, logo etc. We are incorporating a digital video watermark into QR Codes for text data. This technique is used for data hiding into video. This technique can be classified as either spatial or frequency domain. Some video watermarking issues are addressed in video watermarking. This project …
Published in Journal of Operating Systems Development & Trends · Vol. 9, Issue 1, 2022 · pp. 28–34 Read article
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Analysis of Image Watermarking Techniques against Various Noise Attacks for Medical Images using Genetic Algorithm (GA)
Abstract: In this paper, we have presented a dual secure digital image watermarking algorithm based on discrete wavelet transforms (DWT), lifting wavelet transforms (LWT) and singular value decomposition (SVD) using genetic algorithm (GA) for medical images. The natural image is chosen as cover image and is decomposed up to three levels using discrete wavelet transform. The medical image is chosen as a watermark. The genetic algorithm is used to embed and …
Published in Journal of Artificial Intelligence Research & Advances · Vol. 2, Issue 3, 2015 · pp. 36–44 Read article
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Video Watermarking – Implementation and Performance Analysis of Combined DWT – SVD Approach
Abstract: In this Paper, the authors state the implementation and performance analysis of digital video watermarking that use the combination of the transform domain processing of the video and fundamentals of the linear algebra. The concept of Discrete Wavelet Transform and Singular Value Decomposition has been used for the development of the proposed algorithm. The authors first applied discrete wavelet transform and then used the singular values, obtained by Singular Value …
Published in Current Trends in Signal Processing · Vol. 2, Issue 1-3, 2012 · pp. 106–114 Read article
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Securing CFA Images through the Simultaneous Hybrid Encryption-Watermarking Method Using Quaternions
Abstract: In order to protect digital data against unauthorized copying, falsification and redistribution over the internet, we proposed a new hybrid method of simultaneous encryption-watermarking of CFA (Color Filter Array) images. The CFA images are important for image analysis because these raw images have not undergone any process (interpolation, demosaicking, etc.) that might alter their reliability. This article presents a study of a new technique for the secure transfer of CFA …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 8, Issue 3, 2021 · pp. 17–28 Read article
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A Multi-Quadrant, Integrated and Secure Model of Multiple Watermarking
Abstract: Watermarking safeguards the copyright of digital images with its original owner. A watermarking model is projected by conjoining three distinct multiple watermarking approaches. The secure model is obtained by integrating multiple watermarking with the latest secure cryptographic algorithms. The proposed model will improve copyright protection, achieve large embedding capacity and provide a stronger association amongst image and watermark for integrity and authentication. The multiple watermarking model partitions the cover image …
Published in Journal of Open Source Developments · Vol. 1, Issue 2, 2014 · pp. 15–28 Read article
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Implementation of Audio Watermarking Technique by Spreaded Echo in Time Domain
Abstract: Now a day, enormous amount of information is produced, stored and dispersed in digitized form. To endow with real time coverage with sequences of high quality audio, still images and video, mass communication media has turned online. This increases the possibility of large-scale unauthorized copying which may lead to undermine the music, film, book and software industries. These concerns over protecting copyright have triggered significant research to find ways to …
Published in Journal of Open Source Developments · Vol. 1, Issue 2, 2014 · pp. 6–10 Read article
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Speech Hiding in a Digital Image using DWT and DES Algorithm
Abstract: AbstractThe proposed paper presents a speech hiding technique in a digital image (DI). Here the technique used is Discrete Wavelet Transform (DWT). It secures speech signal from unauthorized users. It can be done by embedding speech into an image by steganography. Thus, unauthorized users will not detect secret speech in stego image. Suppose unauthorized users detect the speech that will be fraud because no one can obtain speech signal without …
Published in Journal of Open Source Developments · Vol. 4, Issue 2, 2017 · pp. 13–18 Read article
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Comprehensive Review and Analysis of Improved Filtering Methodology Based Image De-noising System
Abstract: A digital image is often ruined by noise that comes from the process and equipment used to make it or that is added to the image while it is being sent. Different kinds of noise, like impulse noise, uniform noise, Salt-and-Pepper noise, and additive Gaussian noise, can show up in images. Using a good image de-noising method, noise can be taken out of an image to bring back its details. …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 2, 2022 · pp. 34–45 Read article
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Comparison Performance Analysis of Multi-Wavelet Based Watermarking Techniques for Medical Images Using Genetic Algorithm (GA)
Abstract: In this paper, the scaling factor of the watermark is the significant parameter that helps in improving the imperceptibility and robustness against attacks. The tradeoff between the imperceptibility and robustness is considered as an optimization problem and is solved by applying genetic algorithm (GA). The water marking is proposed to be implemented using a hybrid approach which encompasses discrete wavelet transforms (DWT), lifting wavelet transforms (LWT) and singular value decomposition …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 3, Issue 1, 2016 · pp. 15–23 Read article