A Survey of Digital Watermarking Techniques and its Applications
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paper_title: A Survey of Digital Watermarking Techniques, Applications and Attacks

paper_content:

The expansion of the Internet has frequently increased the availability of digital data such as audio, images and videos to the public. Digital watermarking is a technology being developed to ensure and facilitate data authentication, security and copyright protection of digital media. This paper incorporate the detail study watermarking definition, concept and the main contributions in this field such as categories of watermarking process that tell which watermarking method should be used. It starts with overview, classification, features, framework, techniques, application, challenges, limitations and performance metric of watermarking and a comparative analysis of some major watermarking techniques. In the survey our prime concern is image only.
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paper_title: A digital watermarking algorithm based on DWT and DCT

paper_content:

A watermarking algorithm based on the discrete wavelet transform and discrete cosine transform is proposed.The bar code is scrambled as a watermark.The carrier image is transformed by discrete wavelet and discrete cosine transforms,and after being scrambled,watermark is embedded.When watermark is extracted,by using Radon transformation,the image is adjusted.According to the binary bar code feature,the proposed watermark image is amended.The experimental results show that the algorithm has good effect,and is not easily perceived after watermark was embedded.It has strong robustness to JPEG loss compression,shear,and noise interference attacks.
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paper_title: Analysis of Digital Image Watermark Attacks

paper_content:

Digital watermarking is one of the most widely used techniques for protection of ownership rights of digital audio, images and video. Its commercial applications range from copyright protection to digital rights management. The success of a digital watermarking technology depends heavily on its robustness to withstand attacks that are aimed at removing or destroying the watermark from its host data. This paper provides analysis of a number of digital image watermark attacks and attempts to classify them into categories. A set of experimental results are also provided to show the effect of these attacks on watermarks produced using different watermarking techniques.
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Title: A Survey of Digital Watermarking Techniques and its Applications

Section 1: INTRODUCTION
Description 1: This section provides an overview of digital media, the importance of watermarking, and the organization of the paper.

Section 2: GENERAL INTRODUCTION OF IMAGE WATERMARKING
Description 2: This section discusses the basics of image watermarking, its origins, comparison with steganography, and the significance of using watermarking for digital media.

Section 3: Process of Image Watermarking
Description 3: This section explains the steps involved in the watermarking process, including the embedding and extraction of watermarks.

Section 4: Watermarking Properties
Description 4: This section outlines the desirable properties of watermarks, such as effectiveness, host signal quality, watermark size, and robustness.

Section 5: Classification
Description 5: This section provides an overview of the different types of digital watermarking techniques based on various classification criteria.

Section 6: Applications of Watermarking
Description 6: This section lists common applications of watermarking, including owner identification, copy protection, broadcast monitoring, medical applications, fingerprinting, and data authentication.

Section 7: Threats for Watermarking
Description 7: This section discusses various threats to watermarking and the need for robust algorithms to prevent attacks.

Section 8: Performance Evaluation of Watermarking Algorithms
Description 8: This section covers the importance of evaluating the performance of watermarking algorithms using quality metrics such as mean square error (MSE) and peak signal to noise ratio (PSNR).