ENHANCED FAST ROBUSTNESS MEASUREMENT IN VIGOROUS DIGITAL IMAGE WATERMARKING VIA SELECTING OPTIMAL FEATURE POINTS
K. Sathyabama · 2014
The increasing amount of research on watermarking over the past decade has been largely driven by its important applications in digital copyrights management and protection for finding the effectiveness of the digital watermarking. The robustness of the digital watermarking has been analysed by different evolution measures and different attacks. In existing method the BER is used for selecting the optimal feature region from the watermarked image. But BER is not a more accurate image quality measure. So Modified version of Peak Signal Noise Ratio (MPSNR) is used in our proposed method. In our proposed method the optimal feature points can be selected from the watermarked image based on the enhanced quality measurement of which point resists the predefined and undefined attacks. For the enhanced quality measurement, the MPSNR value is used. Hence, our proposed method performance is analyzed by taking number of watermark images and finds the optimal feature points which resist both the predefined and undefined attacks more efficiently.