An Enhanced Digital Watermarking for Health System. - Rumen P. Mironov; Stoyan Kushlev (J. Multim. Process. Technol., 2020)

Algorithms for Digital Watermarking of the Health System Images with Hadamard Transform. - Rumen P. Mironov; Stoyan Kushlev (J. Multim. Process. Technol., 2021)