کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
735196 1461736 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Color information verification system based on singular value decomposition in gyrator transform domains
ترجمه فارسی عنوان
سیستم تأیید اطلاعات رنگ براساس تقسیم ارزش منحصر به فرد در حوزه های تغییر جنسیت گیراتور
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی


• A security system using singular value decomposition in gyrator domain is proposed.
• Three encoded information can be assigned to legal users for secure verification.
• The parameters of gyrator transform provide very sensitive additional keys.
• Pre-generated keys for red, green and blue channels are used as decryption keys.
• Numerical simulations support the viability of the proposed verification system.

A new color image security system based on singular value decomposition (SVD) in gyrator transform (GT) domains is proposed. In the encryption process, a color image is decomposed into red, green and blue channels. Each channel is independently modulated by random phase masks and then separately gyrator transformed at different parameters. The three gyrator spectra are joined by multiplication to get one gray ciphertext. The ciphertext is separated into U, S, and V parts by SVD. All the three parts are individually gyrator transformed at different transformation angles. The three encoded information can be assigned to different authorized users for highly secure verification. Only when all the authorized users place the U, S, and V parts in correct multiplication order in the verification system, the correct information can be obtained with all the right keys. In the proposed method, SVD offers one-way asymmetrical decomposition algorithm and it is an optimal matrix decomposition in a least-square sense. The transformation angles of GT provide very sensitive additional keys. The pre-generated keys for red, green and blue channels are served as decryption (private) keys. As all the three encrypted parts are the gray scale ciphertexts with stationary white noise distributions, which have camouflage property to some extent. These advantages enhance the security and robustness. Numerical simulations are presented to support the viability of the proposed verification system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 57, June 2014, Pages 13–19
نویسندگان
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