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42 articles for “re-watermarking”
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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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A Review of Image Watermarking on Different Methods with its Applications
Abstract: AbstractWatermarking is a process to hide some secret data in a cover file. Watermarking is a notion intently related to steganography. In these, both hide information in an image. The information hidden in this is in different forms like an image, song, video within the signal itself. We have studied comparative analysis of various approaches that may positive and negative of these techniques. This comparison can further be used to …
Published in Journal of Image Processing & Pattern Recognition Progress · Vol. 3, Issue 3, 2016 · pp. 24–29 Read article
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Watermarking Analysis of Digital Image Using Various Approaches: A Review
Abstract: AbstractFor present security to the digital media on the net the very beneficial generation is, virtual watermarking (DW). Watermark is an image or pattern in document which is used to identify data authentication and data integrity. The user can check the watermarked records with the watermark key and watermarking extraction system. The different techniques of watermarking reviewed in this paper are: least significant bit (LSB), robust, discrete cosine transform (DCT), …
Published in Journal of Open Source Developments · Vol. 4, Issue 1, 2017 · pp. 30–36 Read article
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A Review on Audio Watermarking Techniques
Abstract: The quick development of web and applications utilizing advanced interactive media innovations has put stress on the need to give copyright security to sight and sound data. A computerized watermark can be depicted as an obvious or ideally imperceptible recognizable proof code that is forever installed in the information. So it can stay displayed inside the spread media after any unravelling methodology. The conceivable arrangement of above issue is distinctive …
Published in Journal of Open Source Developments · Vol. 1, Issue 2, 2014 · pp. 1–5 Read article
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A Review of Digital Image Watermarking Techniques for Secure Data Transmission
Abstract: AbstractNowadays, a chief problem encountered by content providers and owners is the protection of their material. The ease by which digital information can be duplicated and distributed has led to the need for effective copyright protection tools. Recently digital watermarking technology has emerged as an effective solution for protecting the digital content from unauthorized copying. With its area of application coexisting in all three forms of media, i.e., image, music …
Published in Current Trends in Information Technology · Vol. 3, Issue 1, 2013 · pp. 1–6 Read article
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Digital Audio Watermarking: An Overview
Abstract: AbstractA real watermarking procedure is required for copyright security and confirmation of protected innovation. This work recommends an advanced watermarking procedure which makes utilization of concurrent recurrence veiling to conceal the watermark data. The calculation is grounded on Psychoacoustic auditory model and Spread spectrum hypothesis. It creates a watermark sign utilizing spread range hypothesis and implants it into the sign by measuring the covering edge utilizing modified Psychoacoustic auditory model. …
Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 1, 2015 · pp. 1–9 Read article
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Digital Watermark Image Perform on Arnold-DWT-SVD Scheme Has Proved a High Degree of Robustness: A Review
Abstract: AbstractDigital communication plays an important function within the international level of internet as well as within the communication technology. The secrecy of the communication is an essential part of passing the data or information. Digital watermarking (DW) has ended up a promising research place to stand the demanding situations created via the rapid increase in distribution of digital content over the net. To prevent misuse of the facts, DW strategies …
Published in Journal of Open Source Developments · Vol. 4, Issue 1, 2017 · pp. 21–29 Read article
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Implementation of Adaptive Image Watermarking System Using Complementary Quantization Method
Abstract: Blind watermarking installed the watermark by adding or removing a quantized consistent worth from the quantization table. In this study, another versatile and copy quantized blind watermarking framework is proposed to achieve higher straightforwardness. The versatile and correlative quantized table is proposed to propel the vigor as per the properties of the human visual framework and simply observable twisting. Furthermore, the mistake rectifying based watermarking will have the property that …
Published in Journal of Multimedia Technology & Recent Advancements · Vol. 9, Issue 1, 2022 · pp. 23–30 Read article
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Providing Biometric Protection for Iris using Watermark and Visual Cryptography
Abstract: This paper presents a novel security architecture which protects the iris using watermarking and visual cryptography techniques. The iris region is protected using watermarking technique where we are using DCT to embed the watermarked text image into the iris image in the low frequency band. After performing watermarking, the watermarked image is further processed to generate a template using Daugmans method and Gabor filter. The generated template is then gone …
Published in Journal of Communication Engineering & Systems · Vol. 10, Issue 2, 2020 · pp. 1–3 Read article
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Robust Color Image Watermarking using Biometric Protection and Image Authentication Key
Abstract: In recent days, it becomes difficult to provide protection to color images which were captured by modern capturing devices. This paper presents a novel work on copyright protection by providing authentication process for extraction of watermark of color still images. New blind frequency domain non-correlation based watermarking algorithm using one dimensional Walsh coding technique is introduced to improve the robustness. The developed algorithms do not required the original image for …
Published in Current Trends in Signal Processing · Vol. 5, Issue 2, 2015 · pp. 15–23 Read article
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A Survey on Audio Steganography and Audio Cryptography
Abstract: AbstractReliably secure mechanisms are required to protect most untold and blueprint of defense information against vulnerabilities like ID spoofing and unauthorized access to the top most system of a country because of secured access to the Internet and data resources has a high impact in the defense system. For this purpose techniques related to Cryptography and digital Watermarking have been mostly used. For embedding information into objects such as images, …
Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 64–68 Read article
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Digital Watermarking Schemes for Authorization of Color Images using DCT
Abstract: AbstractDigital image processing is growing field. Digital image processing operations are mainly divided into three major categories: Image enhancement, Image compression and Image segmentation. Digital Watermarking comes under Image Segmentation. The present paper proposes the technique for the digital watermarking for digital multimedia. The growth in e-world which is coupled with computer network, world wide web and more over exponential advancement in computer performance. All these technologies has facilitated the …
Published in Journal of Computer Technology & Applications · Vol. 4, Issue 3, 2013 · pp. 15–20 Read article
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Embedding and Extraction of Watermark in Digital Audio
Abstract: AbstractDigital Watermarking, a discipline of steganography, is used to hide within an image or audio file some data specifically relating to that file. An enormous amount of work has been carried out in the field of Image Watermarking. Due to the increasing incidents of audio piracy and illegal retrieval of audio files over the internet, the field of audio watermarking has widespread attention from industry and researchers. In this paper, …
Published in Journal of Computer Technology & Applications · Vol. 5, Issue 2, 2014 · pp. 8–12 Read article
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A Gui Model for the Encryption and Decryption of an Image
Abstract: Digital watermarking is the processing of combined information into a digital signal. A watermark is a secondary image, which is overlaid on the host image, and provides a means of protecting the image. It acts as a digital signature, giving the image a sense of ownership or authenticity. Digital watermarking technique is very impressive for image authentication or protection for attacks. This paper proposes a separable reversible data hiding in …
Published in Recent Trends in Electronics Communication Systems · Vol. 2, Issue 3, 2015 · pp. 47–54 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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ROI based Enhanced Fragile Image Watermarking for Tamper detection
Abstract: Due to increased utilization of web and mixed media applications image watermarking is attaining more popularity. Image watermarking attaches supplementary data about host (original) image as logo/sound/video or content. The primary point of watermarking is to dispense data integrity, copyright assurance, ownership identification and content validation. Along with providing content validation and data integrity watermarking also prevents the content from being modified. The primary necessities of watermarking are security, capacity, …
Published in Journal of Advancements in Robotics · Vol. 5, Issue 3, 2018 · pp. 18–25 Read article
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Analysis of Digital and Audio Watermarking Methods
Abstract: Due to increase in usage of digital multimedia, watermarking technology satisfies the various requirements of copyright protection applications in terms of audio signals but variety of properties of different audio signals crucially affect the selection of suitable watermarking technique. In this paper, due to some experimental requirements, different techniques have been compared. Echo hiding and cepstrum techniques have been used in terms of noise produced during the transmission of audio …
Published in Journal of Open Source Developments · Vol. 1, Issue 1, 2014 · pp. 16–22 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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Digital Image Watermarking using Discrete Cosine Transform
Abstract: Digital image processing is a growing field. Digital image processing operations are mainly divided into three major categories: Image enhancement, Image compression and Image segmentation. Digital Watermarking comes under image segmentation. The present paper proposes the technique for the digital watermarking for digital multimedia. The growth in e-world which is coupled with computer network, world wide web and more over exponential advancement in computer performance. All these technologies has facilitated …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 1, Issue 2, 2013 · pp. 17–22 Read article
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Embedding Dual Watermark in the G-Channel Image Using DCT and 2-D Walsh Code
Abstract: This paper uses two dimensional Walsh coding for blind twofold watermarking algorithm which mixes robust copyright watermark and authentication information into various color images to maintain the copyright ownership of the host images. First watermark i.e. fingerprint image is embedded in the DCT low frequency coefficients of the G-channel image of host image where as the second watermark i.e. mobile phone number is embedded in the DCT block of G-channel …
Published in Current Trends in Signal Processing · Vol. 5, Issue 2, 2015 · pp. 27–34 Read article