Fully phase color image encryption based on joint fractional Fourier transform correlator and phase retrieval algorithm

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2011,（2）
• 页码范围: 30-32
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201109.021002

摘要

A novel fully phase color image encryption/decryption scheme based on joint fractional Fourier transform correlator (JFRTC) and phase retrieval algorithm (PRA) is proposed. The security of the system is enhanced by the fractional order as a new added key. This method takes full advantage of the parallel processing features of the optical system and could optically realize single-channel color image encryption. The system and operation procedures are simplified. The simulation results of a color image indicate that the new method provides efficient solutions with a strong sense of security.