Abstract：With the development of intelligent network technology, digital watermarking technology is an effective means of information protection. The digital watermarking technology of wavelet transform is a common security algorithm of digital watermarking in transform domain. In this paper, under the background of Matlab software, the digital watermarking technology of wavelet transform is simulated, and the resistance of common watermarking attacks is verified. Firstly, the carrier image is processed to obtain the low frequency coefficient. Secondly, the watermark image is preprocessed to obtain scrambled images. Then select the appropriate embedding coefficient and embed the watermark in it. The experimental results show that the wavelet transform has good resistance to common attacks, and the digital watermarking has good invisibility and robustness.
Keywords：Wavelet transform; MATLAB; Arnold transformation
School of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201 China PDF
