Abstract
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.
Highlights
Nowadays, as the Internet becomes ubiquitous and digitizing devices such as scanners and digital cameras become more available, individuals share their own resources on the web
Digital watermarking [2] is a technique of inserting a signal into a digital media to create a variant of the original media containing the watermark information
3.4 Discrete Wavelet Transform-Discrete Cosine Transform based Watermarking. In this method hybrid watermarking technique is used that combines Discrete wavelet transform (DWT) and DCT. In this method first DWT is applied on the host image up to different levels followed by DCT and applies different types of attacks
Summary
As the Internet becomes ubiquitous and digitizing devices such as scanners and digital cameras become more available, individuals share their own resources on the web. (SVD), in which the binary watermark was embedded into greyscale image of size 512 × 512 by modifying the certain elements of the unitary matrix U This method has better performance of resisting adding noise, cropping and median filtering, but is worse in the aspect of resisting the rotation and scaling. Charles Way Hun Fung et al [9] proposed a method to embedded the watermark in videos that insert information in the side view. After this process the DWT-SVD watermarking is used to insert a grayscale image on the luminance(Y) of YUV converted video. The drawback is that the watermarking bits are embedded into the random position as well as Bit error rate is high
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
