An Orthogonal Pseudo Random Sequence Subspace Projection for a High Capacity Cdma Watermarking Scheme

AN ORTHOGONAL PSEUDO RANDOM SEQUENCE SUBSPACE PROJECTION FOR A HIGH CAPACITY CDMA WATERMARKING SCHEME M V S S BABU., Asst.Professor, Dept.of ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. B HARITHA., IV ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. P MALATHI., IV ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. N CHAITHANAYA BHARATHI. IV ECE, RISE KRISHNA SAI PRAKASAM GROUP OF INSTITUTIONS, ONGOLE. [email protected] , [email protected] , [email protected] , [email protected] Abstract: In this paper, we are going to propose an orthogonal pseudorandom sequence subspace projection for a high capacity CDMA watermarking scheme. We introduce a new idea and that eliminate the interference due to the correlation between the host image and the code sequences in the watermarked image. We can improve the robustness, message capacity, PSNR of the watermarked image. We give the implementation steps of the proposed scheme and test its performance under different attack conditions like noising and JPEG attacks by a series of experiments. This proposed scheme experimental results shows better performance then the existing methods and overcame the previous drawbacks under different attack conditions.