Use of DWT: Replacement Phenomenon of Digital Image Watermarking
نویسندگان
چکیده
The manuscript presents the replacement algorithm of digital image watermarking. The tool used for processing is discrete wavelet transform (DWT). The method includes the process of dividing the digital image into multiple frequency bands which are replaced by the content of secrete image. This phenomenon is used to provide copyright protection, imperceptibility to the user. Peak signal to noise ratio (PSNR), mean square error (MSE), correlation coefficients (CC) are the parameters used to check the effectiveness of algorithm. This presented phenomenon is tested with the help of different set of host images and secretes information. Keywords— Correlation Coefficients, Discrete Wavelet Transform, Inverse Discrete Wavelet Transform, Mean Square Error, Peak Signal to Noise Ratio, Replacement Algorithm.
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