Description

Digital Image Invisible Watermarking

Abstract 

In this manuscript, a stationary wavelet transform-based digital image watermarking algorithm is proposed. The proposed algorithm combines the information of low-frequency SWT coefficients and the watermark image without any change in the information present in the original image. Key is a combination and is used to extract the watermark. The proposed method will not affect the quality of the image because of no change in the information present in the original image. The simulation results demonstrate the effectiveness of the proposed algorithm.

Introduction:

Digital watermarking has become a promising research area to face the challenges created by the rapid growth in the distribution of digital content over the internet. To prevent misuse of this data Digital watermarking techniques are very useful, In which a Secret message called watermarks which could be a logo or label, is embedded into multimedia data which again could be used for various applications like copyright protection, authentication, and tamper detection, etc. Based on the requirement of the application the watermark is extracted or detected by a detection algorithm to test the condition of the data. This paper presents another approach for watermarking image and extracting it for authentication purposes.

System Analysis

Existing Systems

• LSB
• DWT
• DCT

Drawbacks of Exisitng System

• High Computational.
• Less accuracy 
• Time-consuming

Proposed Method

• SWT
• Pre-processing
• Fusion 

Advantages

• The SWT Proves to be simple and effective
• Better quality and minimal error
• High accuracy 

Block Diagram 

Hardware Requirements

• system
• 4 GB of RAM
• 500 GB of Hard disk

Software Requirement

• MATLAB 2014a

REFERENCES

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