Secure Image Archiving Using Novel Digital Watermarking Techniques

2011 ◽  
pp. 399-412
Author(s):  
Ruo Ando ◽  
Yoshiyasu Takefuji
Keyword(s):  
Frequency Domain ◽  
Digital Watermarking ◽  
Copyright Protection ◽  
Adaptive System ◽  
Image Watermarking ◽  
Image Data ◽  
Fragile Watermarking ◽  
Location Information ◽  
Layer Image ◽  
Image Archiving

With the rapid advance in digital network, digital libraries, and particularly WWW (World Wide Web) services, we can retrieve many kinds of images on personal and mobile computer anytime and anywhere. At the same time, secure image archiving is becoming a major research area because the serious concern is raised about copyright protection and authority identification in digital media. A more sophisticated technique is required for future multimedia copyright protection. In this chapter we propose a secure image archiving using novel digital-watermarking techniques. Firstly, a nonlinear adaptive system (neural network) is applied for frequency-based digital watermarking. Secondly, we discuss application-oriented watermarking method for GIS image archiving. This chapter is divided into two parts. First section is about the way to apply nonlinear adaptive system for frequency-based image watermarking. We propose a new asymmetric technique employing nonlinear adaptive system trained on frequency domain. Our system uses two public keys to prevent removal attack and archive more fragile watermarking. In embedding, location information of frequency domain, where adaptive system is trained, is binalized, expressed in hexadecimal number, and encrypted in asymmetric cryptosystem. Encrypted location information is embedded in several parts of digital host contents. In generating key, supervised neural networks learn to assign the array of coefficients to teacher signal corresponding to the message to insert. This is one kind of transform-based method to generate public key from private key. In extracting, we use key matrix created by one-way signal processing of adaptive system. Proposal method is tested in still image, and we have empirically obtained the results that the proposal model is functional in implementing more secure and fragile watermarking compared with previous techniques, such as correlation and transform-based asymmetric watermarking. Several experiments are reported to validate the effectiveness of our watermarking method. Second section is about the application of GIS image archiving using digital watermarking technique. Recently, the utilization of GIS (geographical information system) is becoming rapidly pervasive. Consequently, new methodology of archiving and managing images is a pressing problem for GIS users. It is also expected that as the utilization of GIS becomes widely spread, protecting copyright and confidential images will be more important. In this chapter, we propose a three-layer image data format that makes it possible to synthesize two kinds of related images and analysis information in one image data size. To achieve the confidentiality of one hidden image, we apply the private watermarking scheme, where the algorithm is closed to the public. In the proposal model, encoder netlist embedded in the third layer is generated by FOL prover to achieve more secure and less information to decode it, compared with one operation of another block cipher such as RSA. Proposal system users can process two images without the cost of maintaining key and decoding operation.

Copyright Protection in Virtual Communities through Digital Watermarking

2011 ◽  
pp. 61-65
Author(s):  
Huayin Si ◽  
Chang-Tsun Li
Keyword(s):  
Digital Watermarking ◽  
Digital Signature ◽  
Copyright Protection ◽  
Virtual Communities ◽  
Fragile Watermarking ◽  
Robust Watermarking ◽  
Integrity Verification ◽  
Secret Information ◽  
Data Content ◽  
Processing Techniques

Although the development of multimedia processing techniques has facilitated the enrichment of information content, and the never-ending expansion of interconnected networks has constructed a solid infrastructure for information exchanges, meanwhile, the infrastructure and techniques have also smoothed the way for copyright piracy in virtual communities. As a result, the demand for intellectual property protection becomes apparent and exigent. In response to this challenge, digital watermarking has been proposed to serve this purpose. The idea of digital watermarking is to embed a small amount of secret information—the watermark—into the host digital productions, such as image and audio, so that it can be extracted later for the purposes of copyright assertion, authentication and content integrity verification, and so forth. Unlike traditional watermarks printed on paper, which are visible to human eyes, digital watermarks are usually invisible and can only be detected with the aid of a specially designed detector. One characteristic distinguishing digital watermarking from cryptography, which separates the digital signature from the raw data/content, is that digital watermarking embeds the signature in the content to be protected. The superiority of this characteristic is that while cryptography provides no protection after the content is decrypted, digital watermarking provides “intimate” protection, because the digital signature/secret information has become an inseparable constituent part of the content itself after embedding. Because of the very characteristic, digital watermarking requires no secret channel for communicating the digital signature that cryptography does. So in the last decade, digital watermarking has attracted numerous attention from researchers and is regarded as a promising technique in the field of information security. Various types of watermarking schemes have been developed for different applications. According to their natures, digital watermarking schemes could be classified into three categories: fragile watermarking, semi-fragile watermarking and robust watermarking. The schemes of the first two categories are developed for the purposes of multimedia authentication and content integrity verification, in which we expect the embedded watermark to be destroyed when attacks are mounted on its host media. More emphases of these schemes are placed on the capability of detecting and localizing forgeries and impersonations. The main difference between the two is that semi-fragile watermarking is tolerant to non-malicious operations, such as lossy compression within a certain compression ratio, while fragile watermarking is intolerant to any manipulations. Robust watermarking, on the other hand, is intended for the applications of copyright protection, wherein the watermarks should survive attacks aiming at weakening or erasing them provided the quality of the attacked content is still worth protecting. Therefore, the emphasis of robust watermarking schemes is placed on their survivability against attacks. This article is intended to focus on robust watermarking schemes for the application of copyright protection. See Li and Yang (2003) and Lin and Chang (2001) for more details about fragile and semi-fragile schemes.

A Novel Hybrid Discrete Cosine Transform Speeded Up Robust Feature-Based Secure Medical Image Watermarking Algorithm

2020 ◽  
Vol 10 (11) ◽  
pp. 2588-2599
Author(s):  
Saqib Ali Nawaz ◽  
Jingbing Li ◽  
Uzair Aslam Bhatti ◽  
Anum Mehmood ◽  
Raza Ahmed ◽  
...  
Keyword(s):  
Discrete Cosine Transform ◽  
Digital Watermarking ◽  
Copyright Protection ◽  
Image Watermarking ◽  
Image Feature ◽  
Feature Descriptor ◽  
Cosine Transform ◽  
Speeded Up Robust Features ◽  
Feature Based ◽  
Dct Coefficients

With the advancement of networks and multimedia, digital watermarking technology has received worldwide attention as an effective method of copyright protection. Improving the anti-geometric attack ability of digital watermarking algorithms using image feature-based algorithms have received extensive attention. This paper proposes a novel robust watermarking algorithm based on SURF-DCT perceptual hashing (Speeded Up Robust Features and Discrete Cosine Transform), namely blind watermarking. We design and implement a meaningful binary watermark embedding and extraction algorithm based on the SURF feature descriptor and discrete-cosine transform domain digital image watermarking algorithm. The algorithm firstly uses the affine transformation with a feature matrix and chaotic encryption technology to preprocess the watermark image, enhance the confidentiality of the watermark, and perform block and DCT coefficients extraction on the carrier image, and then uses the positive and negative quantization rules to modify the DCT coefficients. The embedding of the watermark is completed, and the blind extraction of the watermark realized. Correlation values are more than 90% in most of the attacks. It provides better results against different noise attacks and also better performance against rotation. Transparency and high computational efficiency, coupled with dual functions of copyright protection and content authentication, is the advantage of the proposed algorithm.

A New Robust Color Image Watermarking Based on DWT and DRT

2013 ◽  
Vol 278-280 ◽  
pp. 1366-1373 ◽  
Author(s):  
Zi Teng ◽  
Xiu Feng Qiu ◽  
Jian Wei Liu
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
Color Image ◽  
Image Watermarking ◽  
Discrete Wavelet ◽  
Color Image Watermarking ◽  
Ridgelet Transform ◽  
Color Image Watermark ◽  
Robust Image ◽  
Watermarking Scheme

The copyright protection of multimedia information is more and more important in the digital age, digital watermarking is a solution to address the topic. This paper proposes a new robust image watermarking scheme based on discrete ridgelet transform (DRT) and discrete wavelet transform (DWT). The scheme respectively embeds a copy of color image watermark into DWT domain and DRT domain, and uses a conception of semi-watermark. Experiment results demonstrate that the watermark can resist various attacks such as adding Gaussian or Union Distribution Noise, JPEG compression, brightness adjustment, contrast adjustment, altering color balance, lens blur, zooming in or out, cropping and some combined attacks etc.

scholarly journals An Image Compression Based Technique to Watermark a Neural Network

2020 ◽  
Vol 9 (4) ◽  
pp. 599-603
Keyword(s):  
Neural Networks ◽  
Digital Watermarking ◽  
Network Performance ◽  
Image Watermarking ◽  
Image Data ◽  
Discrete Wavelet ◽  
Digital Image Watermarking ◽  
Neural Models ◽  
The Neural Networks ◽  
Training Error

While neural networks have made considerable progress in the area of digital representation, training of neural models requires an enormous data and time. It is well known that the use of trained models as initial weights often leads in less training error than un-pre-trained neural networks. We propose in this paper a digital watermarking system for neural networks. We formulate a new challenge: the integration of watermarks into neural networks through discrete cosine transform (DCT) based approach. For discrete wavelet transform (DWT)-based digital image watermarking algorithms, additional performance enhancements could be obtained by combining DWT with DCT. Throughout the neural networks, we also describe specifications, embedded conditions, and attack forms of watermarking. The technique presented here does not affect the network performance in which a watermark is positioned as the watermark is embedded while the host network is being trained. Finally, we perform detailed image data experiments to demonstrate the potential of neural networks watermarking as the basis for this research attempt.

Copyright Protection in Virtual Communities through Digital Watermarking

2008 ◽  
pp. 3788-3793
Author(s):  
Huayin Si ◽  
Chang-Tsun Li
Keyword(s):  
Digital Watermarking ◽  
Digital Signature ◽  
Copyright Protection ◽  
Virtual Communities ◽  
Fragile Watermarking ◽  
Robust Watermarking ◽  
Integrity Verification ◽  
Secret Information ◽  
Data Content ◽  
Processing Techniques

Although the development of multimedia processing techniques has facilitated the enrichment of information content, and the never-ending expansion of interconnected networks has constructed a solid infrastructure for information exchanges, meanwhile, the infrastructure and techniques have also smoothed the way for copyright piracy in virtual communities. As a result, the demand for intellectual property protection becomes apparent and exigent. In response to this challenge, digital watermarking has been proposed to serve this purpose. The idea of digital watermarking is to embed a small amount of secret information—the watermark—into the host digital productions, such as image and audio, so that it can be extracted later for the purposes of copyright assertion, authentication and content integrity verification, and so forth. Unlike traditional watermarks printed on paper, which are visible to human eyes, digital watermarks are usually invisible and can only be detected with the aid of a specially designed detector. One characteristic distinguishing digital watermarking from cryptography, which separates the digital signature from the raw data/content, is that digital watermarking embeds the signature in the content to be protected. The superiority of this characteristic is that while cryptography provides no protection after the content is decrypted, digital watermarking provides “intimate” protection, because the digital signature/secret information has become an inseparable constituent part of the content itself after embedding. Because of the very characteristic, digital watermarking requires no secret channel for communicating the digital signature that cryptography does. So in the last decade, digital watermarking has attracted numerous attention from researchers and is regarded as a promising technique in the field of information security. Various types of watermarking schemes have been developed for different applications. According to their natures, digital watermarking schemes could be classified into three categories: fragile watermarking, semi-fragile watermarking and robust watermarking. The schemes of the first two categories are developed for the purposes of multimedia authentication and content integrity verification, in which we expect the embedded watermark to be destroyed when attacks are mounted on its host media. More emphases of these schemes are placed on the capability of detecting and localizing forgeries and impersonations. The main difference between the two is that semi-fragile watermarking is tolerant to non-malicious operations, such as lossy compression within a certain compression ratio, while fragile watermarking is intolerant to any manipulations. Robust watermarking, on the other hand, is intended for the applications of copyright protection, wherein the watermarks should survive attacks aiming at weakening or erasing them provided the quality of the attacked content is still worth protecting. Therefore, the emphasis of robust watermarking schemes is placed on their survivability against attacks. This article is intended to focus on robust watermarking schemes for the application of copyright protection. See Li and Yang (2003) and Lin and Chang (2001) for more details about fragile and semi-fragile schemes.

scholarly journals A Study on Digital Watermarking Techniques

2018 ◽  
Vol 4 (3) ◽  
pp. 5
Author(s):  
Garima Bhargava ◽  
Arun Jhapate
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
Information Hiding ◽  
Image Watermarking ◽  
Multimedia Systems ◽  
Research Interest ◽  
Transform Domain ◽  
Still Images ◽  
Audio Video ◽  
Networked Multimedia

Digital watermarking was introduced as a result of rapid advancement of networked multimedia systems. It had been developed to enforce copyright technologies for cover of copyright possession. This technology is first used for still images however recently they need been developed for different multimedia objects like audio, video etc. Watermarking, that belong to the information hiding field, has seen plenty of research interest. There's a lot of work begin conducted in numerous branches in this field. The image watermarking techniques might divide on the idea of domain like spatial domain or transform domain or on the basis of wavelets. The copyright protection, capacity, security, strength etc are a number of the necessary factors that are taken in account whereas the watermarking system is intended. This paper aims to produce a detailed survey of all watermarking techniques specially focuses on image watermarking types and its applications in today’s world.

Data Hiding in Document Images

2008 ◽  
pp. 291-304
Author(s):  
M. Chen ◽  
Nasir Memon ◽  
Edward K. Wong
Keyword(s):  
Digital Media ◽  
Digital Watermarking ◽  
Data Hiding ◽  
Copyright Protection ◽  
Image Watermarking ◽  
Binary Image ◽  
Document Images ◽  
Hiding Capacity ◽  
Binary Images ◽  
Recent Developments

With the proliferation of digital media such as images, audio, and video, robust digital watermarking and data hiding techniques are needed for copyright protection, copy control, annotation, and authentication of document images. While many techniques have been proposed for digital color and grayscale images, not all of them can be directly applied to binary images in general and document images in particular. The difficulty lies in the fact that changing pixel values in a binary image could introduce irregularities that are very visually noticeable. Over the last few years, we have seen a growing but limited number of papers proposing new techniques and ideas for binary image watermarking and data hiding. In this chapter we present an overview and summary of recent developments on this important topic, and discuss important issues such as robustness and data hiding capacity of the different techniques.

scholarly journals Blind Image Watermarking in Canonical and Cepstrum Domains Based on 4-Connected t-o’clock Scrambling

Symmetry ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 266
Author(s):  
Farhana Shirin Chowdhury ◽  
Pranab Kumar Dhar ◽  
Kaushik Deb ◽  
Takeshi Koshiba
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
Image Watermarking ◽  
Superior Performance ◽  
Easy Access ◽  
Multimedia Content ◽  
Watermark Image ◽  
Tree Property ◽  
Multimedia Contents ◽  
Blind Image

Copyright protection of multimedia content is confronted with great challenges such as easy access to the Internet. Digital watermarking is widely applicable technique for copyright protection of multimedia contents. In this paper, a blind symmetric watermarking method in canonical and cepstrum domains based on four-connected t-o’clock scrambling is proposed. Initially, the watermark image is scrambled using the four-connected t-o’clock method to enhance the security. Then, the rotation operation is applied to the host image to extract the region where the watermark bits are embedded. After that, discrete linear canonical transform (DLCT) is applied to the extracted region to obtain the DLCT region. Cepstrum transform (CT) is performed on DLCT region to attain CT region. The CT region is then divided into non-overlapping blocks. The watermark bits are inserted into each block using max-heap and min-heap tree property. Experimental results illustrate that the proposed method shows high robustness against numerous attacks. Moreover, it produces high quality watermarked images and provides high security. Furthermore, it has superior performance to recent methods in terms of imperceptibility, robustness, and security.

scholarly journals An Efficient Image Watermarking System Based on Error Correcting Codes in DCT Domain

1970 ◽  
Vol 3 ◽  
Author(s):  
Pranab Kumar Dhar ◽  
Mohammad Ibrahim Khan ◽  
Sujan Chowdhury
Keyword(s):  
Digital Watermarking ◽  
Copyright Protection ◽  
Image Watermarking ◽  
Binary Sequence ◽  
Block Codes ◽  
Error Correcting Codes ◽  
Multimedia Data ◽  
Storage Unit ◽  
Dct Domain ◽  
Linear Block

Digital watermarking has drawn extensive attention for copyright protection of multimedia data. This paper proposes a new watermarking system for digital images using efficient systematic linear block codes (SLBC) in discrete cosine transform (DCT) domain. The proposed watermarking system using SLBC generates a code sequence of {0, 1} that provides error correction capabilities and then replaces it with a binary watermark sequence of {-1, 1}. This achieves more robust invisible image watermarks and requires a small storage unit for binary sequence numbers. The generated watermark sequence is then used as an input for our proposed watermarking system which consists of watermark embedding process and watermark detection process. Experimental results indicate that the invisible watermark embedded with the proposed system are very robust against various kinds of attacks such as white Gaussian noise, JPEG compression, median, and mean filtering, by showing similarity values ranging from 0.7 to 0.8. KEY WORDS: Digital Watermarking; Linear Block Code; Copyright Protection. DOI: http://dx.doi.org/10.3329/mist.v3i0.8056

scholarly journals Robust Formal Watermarking Model Based on the Hyperbolic Geometry for Image Security

2020 ◽  
Vol 9 (3) ◽  
pp. 617-629
Keyword(s):  
Digital Watermarking ◽  
Hyperbolic Geometry ◽  
Copyright Protection ◽  
General Public ◽  
Image Watermarking ◽  
Source Tracking ◽  
Video Authentication ◽  
Digital Revolution ◽  
Integrity Protection ◽  
Digitized Documents

The digital revolution has led to an increase in the production and exchange of valuable digitized documents across institutions, companies and the general public alike. Ensuring the authenticity, integrity and ownership of these official or high-value documents is essential if they are to be considered useful. Digital watermarking is a possible solution to this challenge as it has already been used for copyright protection, source tracking, and video authentication to name just a few applications of its use. It also enables integrity protection, which is of value for numerous documents types (e.g., official documents, medical images). In this paper, we propose a new watermarking solution that is applicable to image watermarking and is based on hyperbolic geometry. Our new solution builds upon existing work in geometrical watermarking.

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