Master of Science in Electrical Engineering (MSEE)
Electrical and Computer Engineering
This thesis improves upon the work carried out by Mandhani on decimal sequence watermarking showing that the embedding and decoding algorithms used by Mandhani are not robust. We next specify improvements to these algorithms so that the peak signal to noise ratio (PSNR) is maximized and the distortion introduced in the image due to the embedding is minimized. By exploiting the cross correlation property of decimal sequences, the concept of embedding more than one watermark in the same cover image has been investigated. A comparison between the PSNRs for decimal sequence watermarking and other pseudorandom sequences has been made.
Document Availability at the Time of Submission
Release the entire work immediately for access worldwide.
Ashfaq, Naveed Shaik, "Improved watermarking scheme using decimal sequences" (2005). LSU Master's Theses. 1577.