The Image space and Hough space: (a) A line in Image space, (b) Transform points to Hough space.

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The Structure of QR code and the live QR code: (a) The Structure of QR...

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The Image space and Hough space: (a) A line in Image space, (b)...

The result of Hough transform: (a) Original medical image, (b) The...

A digital watermarking method for medical images resistant to print-scan based on QR code

Article

Full-text available

Nov 2023

Weixia Chen
Qin Li
Xiaoyan Tang
Qiyong Pan

Medical images are important records to improve people’s health care, and their security has become an important issue when they are transmitted through various media especially print and scan equipments. This paper proposes a digital watermarking method for medical images based on live QR code, DWT-SVD, Hough transform and bilinear interpolation....