QR code based noise-free optical encryption and decryption of a gray scale image

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• 作者：Shuming Jiao ; Wenbin Zou ; ^{wzouszu@sina.com} ; Xia Li
• 关键词：QR code ; Double Random Phase Encoding ; Optical encryption ; Decryption ; Speckle noise ; Gray scale image
• 刊名：Optics Communications
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：387
• 期：Complete
• 页码：235-240
• 全文大小：1336 K
• 卷排序：387

文摘

A conversion scheme between gray scale image and QR codes is proposed. A gray scale image can be optically encrypted and decrypted without noise. Not only simple characters or a short expression are attempted. Practically compatible with common QR code generators and readers.