Volume, Issue, Month, Year : Vol 7, No 1, January, 2017
ABSTRACT
In this paper, a semi-blind watermarking technique of embedding the color watermark using curvelet
coefficient in RGB cover image has been proposed. The technique used the concept of HVS that the human
eyes are not much sensitive to blue color. So the blue color plane of the cover image is used as embedding
domain. A bit planes method is also used, the most significant bit (MSB) plane of watermark image is used
as embedding information. Selected scale and orientation of the curvelet coefficients of the blue channel in
the cover image has been used for embedding the watermark information. All other 0-7 bit planes are used
as a key at the time of extraction. The results of the watermarking scheme have been analyzed by different
quality assessment metric such as PSNR, Correlation Coefficient (CC) and Mean Structure Similarity Index
Measure (MSSIM). The experimental results show that the proposed technique gives the good invisibility of
watermark, quality of extracted watermark and robustness against different attacks.
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