LAUSR

In recent years, digital watermarking technology has become an important technology to protect patient privacy in telemedicine. Because medical information is highly sensitive, the security of medical images is a key problem in telemedicine applications. Aiming at the key color image watermarking scheme and the non key color image watermarking algorithm, two targeted attack schemes are proposed to evaluate their security in telemedicine. The target scheme is based on SVD and QR based color image watermarking algorithm, and their embedding process is the same. The proposed attack takes advantage of the prior knowledge of the watermarking algorithm to make the exact embedding space change. Therefore, these changes will lead to an interruption of the extraction process. The experimental results show that the watermarking scheme based on Watermark Based on the scheme of key key safety. This is because the proposed target attack needs to tamper with the key based watermark image, instead of the key based image, to remove the embedded watermark. Our proposed targeted attack has more effective watermark removal performance than other general attacks such as JPEG compression, Gauss noise, and so on.