کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1539366 996635 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Image encryption based on the multiple-order discrete fractional cosine transform
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Image encryption based on the multiple-order discrete fractional cosine transform
چکیده انگلیسی

A novel scheme for image encryption based-on the multiple-order discrete fractional cosine transform (MODFrCT) is proposed. The DFrCT has a similar relationship with the discrete fractional Fourier transform (DFrFT). Not only has the DFrCT many useful properties similar to the conventional discrete cosine transform, but it also has another property, namely its fraction, or its transform order. The image to be encrypted is transformed with the multiple-order DFrCT using a random row cipher key vector and a random column key vector successively, and the corresponding cipher key vectors of decryption are also very sensitive. The transmission of the encrypted image with the algorithm of the multiple-order DFrCT is faster due to its reality. The digital simulation results proved the validity and safety of this algorithm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 9, 1 May 2010, Pages 1720–1725
نویسندگان
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