Abstract:
Digital watermarking technology is now
attracting considerable attention as one of the
potential solutions for protecting copyrights of
digital images. In this paper, digital color image
watermarking scheme based on Lifting Wavelet
Transform (LWT) is proposed. The RGB color
space is converted into YCbCr color space and Y
component is selected for watermark embedding.
The Y channel is transformed into frequency
domain using Lifting Wavelet Transform (LWT).
LWT decomposition is done with 'Harr' which is
simple and symmetric wavelet. The proposed
system focuses on an invisible and blind
watermarking. The system will be tested on
quality factors such as imperceptibility and
performance evaluation metrics. The presented
algorithm is implemented in Matlab.
