Watermarking Techniques Performance Analysis in Medical Images for Secure Communication

Over the past few years, most medical diagnostics and treatments have shifted to digital content. COVID-19 is a viral disease first identified in Wuhan, China 2019. Its pandemic caused a dramatic loss in human health, work, and food systems worldwide. WHO recommended social distancing as a preventive measure to protect ourselves from corona viral infections. Hence, now many avail hospitals facilities are online. It enables telemedicine where patients, doctors, and medical research units can easily share their digital medical information through various communication channels. At the receiver’s end, the patient’s record must not be lost or altered during transmission. As medical imaging contains many fine features, even small changes cause confusion among medical staff for diagnosis. One of the best techniques for image authentication is digital image watermarking. When developing an effective watermark method, it’s necessary to have a balanced trade-off among imperceptibility, capacity, and robustness. The work gives a comprehensive survey of cryptography, biometrics, and blockchain-based on various watermarking schemes in medical images that gives new ideas to improve the already existing techniques.