Abstract
High Capacity and Secure Watermarking for Medical Images Using Tchebichef Moments
Highlights
In recent years, it has been common to transmit the patients’ medical information by the electronic communication
Medical images are among the data that are frequently transmitted from one place to another and their security is of great importance
This section introduces the suggested watermarking method applied through Tchebichef moments and conditional quantization based on the dither modulation
Summary
It has been common to transmit the patients’ medical information by the electronic communication. Due to the low error rate in image reconstruction, the moments can be used for the embedding of the watermarks Having features such as being independent of translation, rotation, and scaling results in further robustness of the watermarking method. The search for the unit disks is done and the watermark bits are rediscovered using minimum distance decoder In this method, order p and iteration q = 4m are used, and so the applicable moments are reduced to about one fourth. Elshoura in [13] performed the watermarking based on Zernike, Legendre, and Tchebichef moments In this method, for each image and watermark pattern, all the moments are calculated to the order of S and embedded with each other.
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