SEARCH ENGINEERING RESEARCH PAPERS

recent watermarking research papers 2014


digital watermarking



A reversible digital watermarking algorithm for vector maps
free download

Abstract A reversible digital watermarking algorithm of 2D vector maps based on BP neural network is proposed in this paper. The watermarks were converted to binary bits, and were manipulated as the coefficients of neural network; for embedding the watermarks invisibly,

Biometric Watermarking for Copyright Protection of Digital Images
free download

Abstract The advancement in Computer Science technology and available tools has put the images at the risk of being copied without your permission. One deterrent to scare people away from stealing your images is to place a watermark on your image. It can also provide

Comparison of Digital Watermarking with Other Techniques of Data Hiding
free download

ABSTRACT Digital watermarking is not a new name in the tech neology world but there are different techniques in data hiding which are similar to watermarking. In this paper we compare digital watermarking with other techniques of data hiding. Stenography,

Digital Watermarking using Asymmetric Key Cryptography and Spatial Domain Technique
free download

ABSTRACT Earlier the digital watermarking was evaluated according to imperceptibility, capacity and robustness. In this paper based on security considerations we address a new secure approach. Our new approach is inspired from the cryptanalytic approach. In order

Digital watermarking for images security using discrete slantlet transform
free download

ABSTRACT This paper presents digital images watermarking approach to sustain the ownership and true authentication. To secure intellectual belongings of images, audio and videos, watermark W is converted into a sequence of bits and in order to encrypt the

Digital Image Watermarking Based on LSB for Gray Scale Image
free download

Abstract In recent years, internet revolution resulted in an explosive growth in multimedia applications. The rapid advancement of internet has made it easier to send the data/image accurate and faster to the destination. Besides this, it is easier to modify and misuse the

Digital image watermarking using edge detection and genetic algorithm
free download

ABSTRACT Watermarking in the regions which knew as an edge of the image with some filters which uses as an edge detection improves the watermarking results. But since there is an embedding strength coefficient, finding the best values for this coefficient needs an

A Robust Method for Integrity Protection of Digital Data in Text Document Watermarking
free download

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 images, audio and video clips. So it may be required to be protected. Text

DIGITAL WATERMARKING FOR COLOR IMAGES USING WAVELET TRANSFORM
free download

ABSTRACT The technique of digital watermarking is one of the best methods for copyright protection. In this paper, we propose a digital watermarking scheme with color images based on discrete wavelet transform in order to protect the digital media copyright

Digital Watermarking of Wavelet Transforms Based on Coding and Decoding Techniques
free download

ABSTRACT Digital watermarking is the most important technology in today's world, to avoid illegal copying of data. This technique can be applied to audio, video, text or images. This paper surveys the features and concepts pertaining to the various watermarking

Digital Watermarking of an Audio Signal Using an Image
free download

ABSTRACT A digital watermark is a digital signal or pattern inserted into a digital document such as text, graphics or multimedia and carries information unique to the copyright owner, the creator of the document or the authorized consumer. The main applications of Digital

Data Authentication using Digital Watermarking
free download

ABSTRACT With the widespread use of networks, intellectual properties can be obtained and reproduced easily. The ease of reproduction, distribution, and manipulation of digital documents creates problems for authorized parties that wish to prevent illegal use of such

A Review of Digital Watermarking Strategies
free download

ABSTRACT This paper presents a robust watermarking technique photos. The planned technique involves many techniques to enable a secure and powerful watermarking. throughout this system the watermark is embedded in third level of DWT (Discrete

Digital Image Watermarking Using BFO Optimized DWT and DCT Comparison between DWT, DWT+ DCT, DWT+ DCT+ BFO
free download

ABSTRACT Watermarking has been invoked as a tool for the protection of Intellectual Property Rights (IPR) of multimedia contents. Because of their digital nature, multimedia documents can be duplicated, modified, transformed, and diffused very easily. In this context, it is

A Study on Performance Evaluation Metrics for Digital Watermarking Algorithms
free download

Abstract. Even though diverse digital watermarking algorithm was developed to protect copyright, existing methods vary in performances according to image characteristics. While there are simple methods suitable for black and white images like medical images, there

Digital Watermarking Using Hybridization of Optimization Techniques: A Review
free download

ABSTRACT The vast data exchange on the Internet and the extensive use of digital media, has raised an alarm in multimedia security. Digital watermarking provides techniques to hide watermarks into digital content to achieve copyright protection and prevent its illegal copy Geometric distortions that cause displacement between embedding and detection are usually difficult for watermark to survive. It is a challenging work to design a robust image watermarking scheme against geometric distortions, especially for local geometric

A Study on Effective Digital Watermarking Method Suitable for QR code
free download

Abstract. Recently, many studies are being conducted related to the method of inserting the digital watermark in the QR code. The QR code is made up of a simple repeating black and white module and has many differences compared to general images. In this paper, a

Dual Domain Based Digital Watermarking For Authentication of Digital Electronics Data Images
free download

ABSTRACT The water around for many centuries, in the form of watermarks found initially on plain paper and then goes away. However, the field of digital water and placed only during the last 15 years, and is now used in many different applications. The proposed work has

Attestation Performance on Digital Watermarking
free download

Summary In this study, we propose a digital watermarking scheme, which performs operations like embedding, attack and detection of watermarks. Watermarks are embedded for authentication of images. In this paper, both visible and invisible watermarks are

Survey on Digital Watermarking–A Digital Forensics Security Application
free download

ABSTRACT This article presents an overview of various watermarking types and techniques. This is a survey paper which categories watermarking methods into seven parts. Watermarking method depends upon visibility, document type, robustness, watermarking Digital image watermarking is one of the prime areas of research in the field information security and data authentication. There exist different methods to embed watermark information in the image. Image imperceptibility is a factor that limits the amount of

A Novel Spread Spectrum Digital Audio Watermarking
free download

ABSTRACT Watermarking has become important in the last decade because of the copyright protection applications. Embedding information into an audio file is more difficult as compared to images because human auditory system is more sensitive than human visual

Integration of Digital Image Processing Using Watermarking Algorithm
free download

ABSTRACT The most important and distinguishing features of wavelet-based watermarking schemes. Application scenario, copyright protection is considered and building on the experience that was gained, implemented two distinguishing watermarking schemes.

Real Time Simulation Based on Image Protection Using Digital Watermarking Techniques
free download

ABSTRACT There are several Protocol and embedding techniques which are used to hide data digitally for an object in highly sophisticated environment. These protocols and technique must fulfill a number of requirements correctly applied for steganography. The

DIGITAL WATERMARKING ON MEDICAL IMAGES USING DWT
free download

ABSTRACT In traditional handling of medical records, the patient information and his/her test reports are kept in different tables or databases or locations. But this type of data management is vulnerable to human oriented errors. For example, transfer of wrong report

FPGA IMPLEMENTATION OF DIGITAL WATERMARKING SYSTEM
free download

ABSTRACT Digital watermarking is an effective way to protect copyright of multimedia data even after its transmission. Current trends support digital image files as the cover file to hide another digital file with secret message or data. This paper proposes Discrete Wavelet

Literature Survey on Digital Watermarking
free download

ABSTRACT This paper presents a review on different digital watermarking techniques and their properties. The main reason for development of digital watermarking research is to protect intellectual properties of the digital world. Since the recent technology makes it easy This paper addresses the problem of ownership of digital watermark by inserting a biometric- based watermark in the digital host signal. The biometric-based digital watermark is made secure using an encryption technique using Arnold catmap before embedding. Biometric-

Effective Copyright Protection of Digital Products by Embedding Watermarking
free download

ABSTRACT The watermarking of digital images, audio, video and multimedia products in general have been proposed for resolving copyright ownership and verifying originality of content. This paper studies the contribution of watermarking for developing the protection

Blind Robust Digital Video Watermarking Scheme using Hybrid Based Approach
free download

ABSTRACT Video Watermarking is one of the important area in the field of piracy. Now a day's huge amount of digital data is spread over the internet, so its challenge to provide security to those digital data such as video, audio, images and text file. Video watermarking is a one

Research on Communications Encryption Technology Based on Integration of Digital Watermarking
free download



A Video Digital Watermarking Algorithm Based on Chaotic Maps
free download

Abstract. The scrambled watermark is embedded in DCT coefficients of low-frequency sub image with the Brightness Component of original color image after lifting wavelet transformation. Before embedding the watermark, the image confusion method is used to eliminate the space

THE DIGITAL WATERMARKING TECHNIQUE FOR NUMERICAL RELATIONAL DATABASES
free download

ABSTRACT Data is an important asset of any application and large amount of data are usually stored as database tables. The need for digital watermarking and encryption of the relational database is to ensure its integrity, authentication and confidentiality. In this The improvements in internet technologies and growing demands on online multimedia businesses have made digital copyrighting as a major challenge for businesses that are associated with online content distribution via diverse business models including pay

Review of Methodologies and Techniques for Digital Watermarking
free download

ABSTRACT The advances in electronic and information technology, together with the rapid growth of techniques for powerful digital signal and multimedia processing, have made the distribution of video data much easier and faster. So to make them secure from any

A Double Encrypted Digital Image Watermarking Algorithm Based on Compressed Sensing
free download

Abstract In order to ameliorate the secrecy of image watermarking algorithm and the drawback of watermarking algorithm based on single compressed sensing (CS) that cannot resist large-scale attacks, a double encrypted digital image watermarking algorithm based

Content protection in video data based on robust digital watermarking resistant to intentional and unintentional attacks.
free download

ABSTRACT Embedding a digital watermark into an electronic document is proving to be a feasible solution for multimedia copyright protection and authentication purposes. In the present paper we propose a new digital video watermarking scheme based on scene

The Generating Method of Two-dimensional Code Identity Based on Business Secret andDigital Watermarking in the Internet of Things
free download

Abstract In the related applications based on the Internet of Things, Two-dimensional code is widely used in the intelligent systems of different industries to indentify the object by its high performance-price ratio. However, the majority of two-dimensional code generation

IMAGE AUTHENTICATION: A FEW APPROACHES USING DIGITAL WATERMARKING
free download

ABSTRACT We might think that the images that we pick are all ours. Images may be secure enough with a Watermark that could be very well traced down. A digital Watermark is a digital signal or pattern inserted into a digital image. Since this signal or pattern is present

Watermarking Digital Images Using Fuzzy Matrix Compositions and (a, )-Cut of Fuzzy Set
free download

ABSTRACT Watermarking in digital images is for authentication and restricting it for unauthorized usages. Videos and other digital contents are used often by unauthorized users. Fuzzy Compliment-Min-Min Matrix, Fuzzy Compliment-Max-Max Matrix, Fuzzy The International Workshop on Digital Forensics and Watermarking 2012 (IWDW12), hosted by Shanghai Jiao Tong University, was held in Shanghai, China, from October 31 to

Watermarking Digital Images Using Fuzzy Matrix Rule and Neighbourhood Set
free download

ABSTRACT Watermarking is done in digital images for authentication and to restrict its unauthorized usages. Watermarking is sometimes invisible and can be extracted only by authenticated party. Encrypting a text or information by public private key and then

Digital Watermarking for Video
free download

ABSTRACT A method is proposed for embedding data on a digital motion picture to be shown in a theater, such as date and time of exhibition, and a theater identifier. Embedded data appears on the video in the form of noise. The goal of this project is to keep the noise level

DIGITAL WATERMARKING
free download

ABSTRACT Due to the rapid advancement in internet technology and evolution of high speed networks working throughout the world, security of multimedia content is immediately required., information transmission faces a big confront of security. People need a

Novel Algorithm for Secure Medical Image Communication using ROI Based Digital LosslessWatermarking and DS
free download

Abstract Protection of Medical Image content is very much important in medical image Communication for telediagnosis and telesurgery. Digital lossless watermarking becomes the promising technique to secure the medical content in medical images. To enhance the

Tampering Detection in Compressed Digital Video Using Watermarking.
free download

Abstract This research presents a method to detect video tampering and distinguish it from common video processing operations such as recompression, noise, and brightness increase, by using a practical watermarking scheme for real-time authentication of digital

Comparison of Digital Image Watermarking Algorithms
free download

Watermark Extraction Algorithm 1. Transform the watermarked image to frequency domain by DCT. 2. Use the same set of random numbers, which is applied in the embedding process. 3. Apply the random number to find the exact location of the DCT block in the

Standard Deviation-Based Image Fidelity Measure for Digital Watermarking
free download

Abstract. In this article we introduce new standard deviation-based image fidelity measure for digital watermarking. We demonstrate that this measure outperforms well-known image fidelity measures in terms of correlation with subjective assessment of a human. As a

Watermarking Digital Image Using Fuzzy Matrix Compositions and Rough Set
free download

ABSTRACT Watermarking is done in digital images for authentication and to restrict its unauthorized usages. Watermarking is sometimes invisible and can be extracted only by authenticated party. Encrypt a text or information by public private key from two fuzzy

Digital Color Image Watermarking In RGB Planes Using DWT-DCT-SVD Coefficients
free download

ABSTRACT Watermarking is mainly used for copyright protection for multimedia data. This paper presents Discrete Wavelet Transform, Discrete Cosine Transform and linear algebra called Singular Value Decomposition (DWT-DCT-SVD) for digital image watermarking. In

Digital Audio Watermarking techniques with Musical Audio Feature Classification
free download

Abstract Digital audio watermarking is an important and popular technique along the original musical audio content producers. Watermarks can be utilised as evidence for proving the ownership. Musical audio can be characterized by the common characteristics shared in

A Survey: Digital Image Watermarking Techniques
free download

Abstract Multimedia security is extremely significant concern for the internet technology because of the ease of the duplication, distribution and manipulation of the multimedia data. The digital watermarking is a field of information hiding which hide the crucial information

Digital WaterMarking
free download

ABSTRACT A robust, computationally efficient and blind digital image watermarking in spatial domain has been discussed in this paper. Embedded watermark is meaningful and recognizable and recovery process needs only one secret image. Watermark insertion

Enhancing Emd Watermarking Scheme For Copyright Protection Of Digital Audio Data
free download

ABSTRACT In modern communications, network security is becoming a vitally important task for exchanging data on social sites. The audio data that are uploaded in social sites can be edited by unauthorised person. So we need an authorised protection to give our signature

New fragile authentication watermark for images
free download



Digital watermarking
free download

cover a full range of topics, including robust and fragile watermarking, steganography and Table of Contents XI New Public-Key Authentication Watermarking for JBIG2 VII: Channel Coding and Watermarking Digital Watermarking Robustness and Fragility Characteristics: New

An image fragile watermark scheme based on chaotic image pattern and pixel-pairs
free download

In recent years, Bin et al proposed a new attack called as oracle attack [20], [21] and [22]. Watermarked multimedia signals should not be perceptual by human visual system. However, for fragile watermark, the robustness is not the most important factor again. we cannot show the manipulated areas like introduced in section 4. However, it gives a new opportunity to evaluate wether the image is unchanged using digital watermarking techniques combined with The approach produces both a robust and a content-fragile watermark.

New semi-fragile image authentication watermarking techniques using random bias and nonuniform quantization
free download

Under such operations, the (original difference-new difference) points will be located at the diagonal line if 3. Semi-fragile watermark verification steps Neglecting these manipulations may cause extremely harmful defects especially in case of digital watermarking, which should

Lossless watermarking for image authentication: a new framework and an implementation
free download

In general, the watermark embed- ding step disturbs the image statistics in a We present a new lossless image authentication framework which offers computational efficiency and compatible with the existing lossless (reversible) data embedding and fragile image authentication

Hierarchical watermarking for secure image authentication with localization
free download

on the watermarked image X is observed through the changes on the detected watermark. constructs a vector quantization codebook using blocks from a set of watermarked images. of the original methods.1 In this paper, we propose a new fragile watermarking algo- rithm A new fragile watermarking algorithm for authentication and tamper detection has been proposed. Fragile imperceptible digital watermark with privacy control. In: Proc. Security of fragile authentication watermarks with localization. In:

Fragile watermarking for authenticating 3-D polygonal meshes
free download

MESHES USED IN OUR EXPERIMENTS AND THEIR WATERMARK CORRELATION VALUES A new fragile watermarking scheme which can be applied to authenticate 3-D polygonal LIN et al.: FRAGILE WATERMARKING FOR AUTHENTICATING 3-D POLYGONAL MESHES bits embedded are still the same in corresponding positions of different watermarked imapes, which If one grey-scale is altered, the watermark bits extracted from surrounding grey while maintain the good property of localization, we propose a new fragile watermarking technique

A fragile watermarking scheme for 3D meshes
free download

In this paper, we shall present a new fragile watermarking scheme to authenticate 3D mesh modulation technique . Compared to the Vertex Flood Algorithm, the embedded watermark using our method is more sensitive to modifications on the watermarked model, while

A survey of watermarking algorithms for image authentication
free download

specific attacks such as the substitution or preservation of the HH watermarked subband. the embedded watermark, or even more common, trying to create a new watermark that the simplified example: the integrity of an image is insured by a fragile watermark, independent of

Security of fragile authentication watermarks with localization
free download

The new scheme is a modification of the scheme proposed by Wong18, in which the content Because the authentication watermark is fragile, the attacker is not interested in making the authentication Actually, disturbing the watermark is quite easy because of its fragility.

Digital watermarking: algorithms and applications
free download

Lastly, we review and summarize future directions in this new and exciting area. This technique has also been shown to be an effective fragile watermarking scheme which can detect which are robust to common compression techniques, and for direct watermark embedding of

Semi fragile watermark with self authentication and self recovery
free download

Abstract Robust watermarks are suitable for copyright protection in a DRM scenario. On the other hand, fragile watermarks are good for tamper detection applications. Semi fragile watermarks possess some properties of both robust and fragile watermarks at a moderate

Combined fragile watermark and digital signature for H. 264/AVC video authentication
free download

ABSTRACT Currently the demand of security is getting higher due to easy reproduction of digitally created multimedia data. Digital watermarking aims to embed secret information into content for copyright protection and authentication. This paper proposes a combined

A reversible image authentication scheme based on chaotic fragile watermark
free download

ABSTRACT. Although a variety of watermark-based image authentication schemes have been proposed so far, most of them have to leave some permanent distortions in the original image for embedding the watermark information. In this paper, we propose a novel

PKI based Semi-Fragile Watermark for Visual Content Authentication
free download

ABSTRACT Multimedia content owners always endure of copyright protection and ownership verification of their digital assets. Robust watermarking techniques are invented to defeat these problems. However evolution of the watermarks focused different security aspects of

Detecting malicious attacks using semi-fragile watermark based on visual model
free download

ABSTRACT Semi-fragile watermarking is robust to mild modifications but fragile to malicious attacks. To achieve this goal, we use a watermarking system which exploits the features of human visual system (HVS). We can classify the nature of the attack by analyzing the

Semi-fragile watermark for visual content authentication
free download

ABSTRACT Digital watermarking was initiated to copyright protection and ownership verification of multimedia data. The evolution of the watermark has focused on different aspects of security issues in multimedia data such as integrity and authenticity. Fragile

An Active Anti-phishing Solution Based on Semi-fragile Watermark
free download

ABSTRACT Although anti-phishing solutions were highly publicized, phishing has been still an important serious problem. One of the main reasons was that phishers cost little to change their targets by copying and then to modify a legitimate site's web pages. In this study, a This paper proposes a novel semi-fragile watermarking technique for sensor data. The proposed watermarking technique embeds the secret watermark in the order of the data readings rather than the data values themselves, thus, does not cause distortion to the

Fragile Watermark Using Chaotic Cipher and K-means Algorithm
free download

Y OZAKI, S KURIYAMA, K TABATA, H KAMATA jsst.jp ABSTRACT We propose the fragile watermark algorithm for tamperer detection and authentication of digital images. The proposed method is using chaotic modulator and K- means clustering algorithm. The chaotic modulator includes the Volterra filter for

An Anti-compression Fragile Watermark Scheme for Vector Geographical Data
free download

ABSTRACT The growth of applications and the drastic increase in release of geographical data makes security as a mandatory requirement. In this paper, based on Douglas-peukeer algorithm, a fragile watermark algorithm of vector geographical data is proposed. The

Log File Modification Detection and Location Using Fragile Watermark
free download

ABSTRACT In this paper, a novel algorithm is proposed to protect the integrity of log files. Unlike other existing schemes, the proposed algorithm can detect and locate any malicious modifications made to the log files. Furthermore, massive deletion of continuous data can

Watermarking Relational Databases using Genetic Algorithm Bacterial ForagingAlgorithm
free download

Abstract The vast usage of digital multimedia content in public communication system has raised an increasingly important issue for content owners and service providers. Digital watermarking provides techniques to hide watermarks into digital content to achieve

A Reversible Digital Watermarking Algorithm for Vector Maps
free download

Abstract A reversible digital watermarking algorithm of 2D vector maps based on BP neural network is proposed in this paper. The watermarks were converted to binary bits, and were manipulated as the coefficients of neural network; for embedding the watermarks invisibly,

Digital image watermarking using edge detection and genetic algorithm
free download

ABSTRACT Watermarking in the regions which knew as an edge of the image with some filters which uses as an edge detection improves the watermarking results. But since there is an embedding strength coefficient, finding the best values for this coefficient needs an

PERFORMANCE EVALUATION OF SPATIAL AND FRACTAL WATERMARKING ALGORITHM
free download

ABSTRACT Recent days watermarking plays a vital role in most of the industries for security purpose. In this paper, we compare both spatial and fractal Watermarking algorithms. We have been improving the resistance in data compression. The composition

H. 264/AVC Video Watermarking Algorithm Against Recoding
free download

ABSTRACT In this paper, an effective video watermarking method based on H. 264/AVC was proposed. We select Intra_4 4 and Intra_16 16 as the embedding target, each macroblock would be embedded into 1 bit watermark. In Intra_4 4, we explorer the characteristic of

Comments and Proofs to Published Paper-A Novel Reversible Robust Watermarking Algorithm Based on a Chaotic System.
free download

Abstract Information hiding is an emerging research area which includes applications such as copyright management [4], tamper detection and content authentication. Existing chaos optimization and random position selection based watermarking embedding methods

Research and Implementation of an Integrity Video Watermarking Authentication Algorithm
free download

Abstract The integrity video watermarking authentication algorithm is proposed based on DCT coefficients. Because of the characteristic of vulnerable to interference for high- frequency DCT coefficients, we use the relationship between the average energy of the

Research of Digital Image Watermarking Robustness Algorithm Based on DCT
free download

Abstract. Image watermarking is a carrier image watermarking technology. This paper studies the research direction of the digital watermarking image of the DCT-based image robust watermarking algorithm design. We studies robust algorithm of watermarking

Integration of Digital Image Processing Using Watermarking Algorithm
free download

ABSTRACT The most important and distinguishing features of wavelet-based watermarking schemes. Application scenario, copyright protection is considered and building on the experience that was gained, implemented two distinguishing watermarking schemes.

A Video Digital Watermarking Algorithm Based on Chaotic Maps
free download

ABSTRACT. The scrambled watermark is embedded in DCT coefficients of low-frequency sub image with the Brightness Component of original color image after lifting wavelet transformation. Before embedding the watermark, the image confusion method is used to eliminate the space

An Upgraded Approach for Robust Video Watermarking Technique Using StephensAlgorithm
free download

ABSTRACT Digital data is easily available in the form of images and videos, over the internet. Because of their digital nature, multimedia data can be duplicated, modified, transformed and diffused very easily. The growth of internet is so vast that any data can be easily

A Double Encrypted Digital Image Watermarking Algorithm Based on Compressed Sensing
free download

ABSTRACT In order to ameliorate the secrecy of image watermarking algorithm and the drawback of watermarking algorithm based on single compressed sensing (CS) that cannot resist large-scale attacks, a double encrypted digital image watermarking algorithm based We present a novel blind biometric watermarking algorithm based on contourlet transform in this paper. The host image is decomposed into a series of multiscale, local and directional subimages using contourlet transform. A high frequency directional sub band which has This paper addresses the problem of ownership of digital watermark by inserting a biometric based watermark in the digital host signal. The biometric based digital watermark is made secure using an encryption technique using Arnold catmap before embedding. Biometric

Secure Optical Scanning Cryptography based Stereo Image Watermarking using GeneticAlgorithm
free download

Abstract Watermarking has become an important tool for multimedia object creator or distributor to address the growing concern of multimedia owners. An attempt has been made to develop a complete secure digital stereo image non-blind watermarking system for

A New Image Watermarking Scheme using Multi-Objective Bees Algorithm
free download

ABSTRACT The optimization of watermarked image fidelity and watermark robustness is an attractive research topic in image watermarking. In this paper, we propose a new image watermarking scheme based on multi-objective bees algorithm to promote watermarking

Robust Blind Video Watermarking Algorithm
free download

Digital watermarking is a means to embed copyright information into a digital multimedia data such as image, audio, video, etc. Usually, watermarks can be embedded in the spatial or the transform domain of the original multimedia data and in most cases, watermarks

Effect of Different Places in Applying Laplacian Filter on the Recovery Algorithm in Spatial Domain Watermarking
free download

ABSTRACT Generally, Laplacian filter is used to make an image more defined and enhanced. In this study, a comparison is toke place between the effects of different places of performing Laplacian filter on the power of the watermark recovery in spatial domain image

request paper Digital Watermarking using DWT and DES



Digital Watermarking using DWT and DES
free download

paper proposes an algorithm to protect digital data by embedding watermark that is encrypted by DES algorithm. Two level discrete wavelet transformation (DWT) is applied

request paperImage Authentication and Restoration by Multiple Watermarking Techniques with Advance Encryption Standard in Digital Photography


Image authentication and restoration by multiple watermarking techniques with advance encryption standard in digital photography
free download

Abstract-In the past few years, semi-fragile watermarking techniques have become increasingly important to secure and verify the multimedia content and also to localize the tampered areas, while tolerating some non-malicious manipulations or attacks. In digital


FREE ENGINEERING RESEARCH PAPERS