Review of Digital Watermarking Technique for Copy Write Protection in Color Image using DWT and SVD
Volume: 5 - Issue: 04 - Date: 01-04-2016
Approved ISSN: 2278-1412
Published Id: IJAECESTU266 | Page No.: 949-951
Author: Neelam Gakhre
Co- Author: Ranjana Batham,Prashant Parashar
Abstract:-A new Image recognition technique supported wavelet transform (DWT) and Singular
price Decomposition (SVD) that's capable of retrieving most of the photographs like the target
image. during this technique used DWT to transfer the target image from the spatial domain into
frequency domain during which it's divided into four sub bands, Low-Low (LL), Low-High (LH),
poker (HL) and High-High (HH) frequencies. during this applied 3 levels of 2-D DWT to
concentrate the image illumination elements into the third-level LL sub band and so applied SVD
to extract its singular values because the reliable and strong options for the popularity. we tend to
additionally calculated the mean and variance of the low frequency LL sub-band for the input
image to make a feature vector composed of mean, variance, and singular values of the LL sub
band, also because the coefficients of the LL sub band. Once the feature vector is made it's
compared with the feature vectors keep in our information to acknowledge and retrieve the
pictures that are like target image supported the minimum error criteria.
Key Words:-Watermarking; RGB color space; Discrete Wavelet Transformation; Singular Value Decomposition.
Area:-Engineering
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