#IJSRD
Digital Watermarking Methods in Spatial Domain and Transform Domain
Abstract---
The ease of digital media modification and dissemination necessitates
content protection beyond encryption. Information hidden as digital
watermarks in multimedia i.e. text, image, video, audio enables
protection mechanism in decrypted contents. In a way that protects from
attacks several common image processing techniques are used in Spatial
Domain and Transform Domain. In Spatial Domain Least Significant
Bit(LSB) is used and in Transform domain Discrete Cosine Transform(DCT)
& Discrete Wavelet Transform(DWT) are used. Among these DWT is best
method due because of using embedded zero tree wavelet image compression
scheme and high frequency sub bands.
For More Details
Click on Below Links :
No comments:
Post a Comment