Abstract

In recent years, the growth of the Internet along with multimedia data delivery, have caused the misuse and even alteration of the original digital content. As a security mechanism, digital watermarking has been used to protect digital content, traditionally in copyright protection applications, and more recently digital watermarking has been used in content enhancement applications. Regardless of the application, digital watermarking schemes always cause some level of signal degradation. There are however, certain applications as in the military or medical fields, where loss of information cannot be tolerated during the reconstruction of host signals, therefore conventional watermarking schemes do not satisfy the quality requirements. In order to reconstruct signals without loss of data, reversible watermarking is employed. Recent research in reversible watermarking has focused on either, the improvement of embedding capacity or the reduction of perceptual impact of the schemes, but scarcely exploring the robustness of reversible schemes. In this survey, we provide a deep review of reversible watermarking schemes and propose a new classification outline based on the robustness point of view. Finally, some future directions for reversible watermarking research are presented and open problems in robust reversible watermarking are outlined.

Highlights

  • These watermarks should, but do not need to be related to the able distortion between the original and the watermarked sigcarrier signal

  • Digital watermarks are transparent or invisible nal, and the watermarks should be difficult to remove without information patterns that are embedded into a signal, such damaging the host signal [5]

  • Menendez-Ortiz et al.: Survey on Reversible Watermarking for Multimedia Content: Robustness Overview determined by the applications where these schemes will be used

Read more

Summary

INTRODUCTION

Digital watermarking is the process of embedding additional watermarks [3], [4]. information, i.e. digital watermarks, into carrier signals. Digital watermarks are transparent or invisible nal, and the watermarks should be difficult to remove without information patterns that are embedded into a signal, such damaging the host signal [5]. Visible watermarks where the watermarking scheme will be used, sometimes do exist, only invisible watermarks will be addressed in this the amount of information that can be embedded is an work. Digital watermarking has been considered to enrich other hand, a scheme that resists a wide variety of attacks with an acceptable degree of imperceptibility will not be able. A digital watermarking scheme, referred in this document as conventional watermarking, consists on two processes: embedding and extraction.

EVALUATION METRICS
FRAGILE REVERSIBLE WATERMARKING SCHEMES
Findings
DISCUSSION AND FUTURE
CONCLUSION AND FINAL REMARKS
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call