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Compressive Sensing Image Watermarking Orthogonal Matching Pursuit

Ease of access to digital data on the internet makes piracy more rampant, especially of copyright and ownership in the multimedia industry. Therefore, we need a system to secure the copyright of data ownership. Watermarking is one solution to overcome piracy that occurs. Watermarking allows the embedded confidential information to be solved by other parties. This study discusses image watermarking using discrete wavelet transform (DWT) method to decompose the host image as an image where the watermark is embedded, the spread spectrum (SS) method used in the insertion process by spreading watermark bits on the host image and compressive sensing (CS) which is used to increase the efficiency of the watermark technique to increase the capacity and perceptibility of the watermarking process. The reconstruction process was carried out using orthogonal matching pursuit (OMP). The result is that the host image has a watermark embedded in the best sub-band. The test results showed the performance of the PSNR value was 71.2 dB, MSE was close to 0 and BER was 0.0001068.