27-02-2013, 09:47 AM
Report on Digital Watermarking
Digital.doc (Size: 45.5 KB / Downloads: 28)
Abstract:
Since security & authentication is very important in domains like banking, finance etc for
transfer of valuable data .we going do design project based on secured data authentication in which we are going to hide the data in an image in a secured manner for that we are going to use a technique called semi-fragile watermarking technique in which we are going to hide the given data behind the image usually when the data is extracted from the image some of the data could be lost for this MSB-LSB decomposition is used to retrieve the data fully and in secured manner In this project we are also using authentication. Authentication is also a form of security, in this project we are using Authentication in the form of key .key is nothing but some numbers or some character or even may be a text file containing some data
Existing System:
Digital Watermark is an invisible mark inserted into the digital multimedia data so that it can be detected in the later stage of evidence of rightful ownership. A great deal of research efforts has been focused on digital watermark in recent years. The techniques proposed so far can be divided into two main groups of according to the embedding domain of the container image.
In existing system we uses spread spectrum technique for watermarking in which robustness and fragility are not present robustness in the sense security and fragility in the sense retrieval of the Data without any error i.e. during the extraction process the data retrieved from the image gets clubbed and because of this some data may get lost and also there is no authentication in the existing system and because of this there is no security in the existing system
Proposed System:
Our proposed system is Secured Data Authentication System in which we are using a technique called semi-fragile technique in which authentication is provided such that both objectives of robustness and fragility are effectively controlled and achieved which gives the proposed system more security and we are using MSB-LSB decomposition method for the extraction process this method extracts the data from the image without any loss it also satisfies both objectives of robustness and fragility
Conclusion:
First generation of copyright marking schemes is not strong enough
Existing schemes provide only limited measures of marking
Can only meet few requirements at a time
Tradeoff - Bandwidth vs. robustness
No single problem but a constellation!
Digital.doc (Size: 45.5 KB / Downloads: 28)
Abstract:
Since security & authentication is very important in domains like banking, finance etc for
transfer of valuable data .we going do design project based on secured data authentication in which we are going to hide the data in an image in a secured manner for that we are going to use a technique called semi-fragile watermarking technique in which we are going to hide the given data behind the image usually when the data is extracted from the image some of the data could be lost for this MSB-LSB decomposition is used to retrieve the data fully and in secured manner In this project we are also using authentication. Authentication is also a form of security, in this project we are using Authentication in the form of key .key is nothing but some numbers or some character or even may be a text file containing some data
Existing System:
Digital Watermark is an invisible mark inserted into the digital multimedia data so that it can be detected in the later stage of evidence of rightful ownership. A great deal of research efforts has been focused on digital watermark in recent years. The techniques proposed so far can be divided into two main groups of according to the embedding domain of the container image.
In existing system we uses spread spectrum technique for watermarking in which robustness and fragility are not present robustness in the sense security and fragility in the sense retrieval of the Data without any error i.e. during the extraction process the data retrieved from the image gets clubbed and because of this some data may get lost and also there is no authentication in the existing system and because of this there is no security in the existing system
Proposed System:
Our proposed system is Secured Data Authentication System in which we are using a technique called semi-fragile technique in which authentication is provided such that both objectives of robustness and fragility are effectively controlled and achieved which gives the proposed system more security and we are using MSB-LSB decomposition method for the extraction process this method extracts the data from the image without any loss it also satisfies both objectives of robustness and fragility
Conclusion:
First generation of copyright marking schemes is not strong enough
Existing schemes provide only limited measures of marking
Can only meet few requirements at a time
Tradeoff - Bandwidth vs. robustness
No single problem but a constellation!