- 著者
- Manuel CEDILLO HERNANDEZ Antonio CEDILLO HERNANDEZ Francisco GARCIA UGALDE Mariko NAKANO MIYATAKE Hector PEREZ MEANA
- 出版者
- 一般社団法人 電子情報通信学会
- 雑誌
- IEICE Transactions on Information and Systems (ISSN:09168532)
- 巻号頁・発行日
- vol.E98.D, no.9, pp.1702-1705, 2015-09-01 (Released:2015-09-01)
- 参考文献数
- 8
- 被引用文献数
- 2
In this letter we present an imperceptible and robust watermarking algorithm that uses a cryptographic hash function in the authentication application of digital medical imaging. In the proposed scheme we combine discrete Fourier transform (DFT) and local image masking to detect the watermark after a geometrical distortion and improve its imperceptibility. The image quality is measured by metrics currently used in digital image processing, such as VSNR, SSIM and PSNR.