کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
850725 909289 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Color image encryption based on orthogonal composite grating and double random phase encoding technique
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Color image encryption based on orthogonal composite grating and double random phase encoding technique
چکیده انگلیسی

A new method of color image encryption based on orthogonal composite grating and double random phase encoding technique is proposed. The red (R), green (G) and blue (B) components of a color image to be encrypted is modulated into an orthogonal composite grating. The deformed composite grating is subsequently encrypted using double random phase encoding technique. At the decoding end, the deformed composite grating is decrypted through double random phase decoding system. By filtering in frequency domain and phase demodulating, the modulated RGB components can be recovered. Computer simulation experiments have proved the validity of the new method. The proposed method is also applicable to encrypt three color images simultaneously after they have been transformed respectively into indexed formats.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 123, Issue 17, September 2012, Pages 1592–1596
نویسندگان
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