selected publications

• academic article

  • Robust watermarking scheme for color image based on quaternion-type moment invariants and visual cryptography.  Signal Processing Image Communication.  48:12-21. 2016
  • Combining double random phase encoding for color image watermarking in quaternion gyrator domain.  Optics Communications.  343:56-65. 2015
  • Double color image encryption using iterative phase retrieval algorithm in quaternion gyrator domain.  Optics Express.  22:4932-4932. 2014