000			01908cam a2200325 a 4500
003			EG-GiCUC
008			180106s2017 ua a f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.13.03.M.Sc.2017.Eb.S
100	0		_aEbrahim Ameen Ahmed Ali
245	1	0	_aSpectral decomposition operators and their applications in image processing / _cEbrahim Ameen Ahmed Ali ; Supervised Mohamed E. Rasmy , Mahmoud H. Annaby , Muhammad A. Rushdi
246	1	5	_aمؤثرات التحليل الطيفى و تطبيقاتها فى معالجة الصور
260			_aCairo : _bEbrahim Ameen Ahmed Ali , _c2017
300			_a145 P. Leaves : _bill. ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Engineering - Department of Systems and Biomedical Engineering
520			_aIn this thesis, we propose new DFrFT-type transforms generated by random matrices and apply them to image encryption. We investigate the significance of our method and compare it statistically with newly established techniques and we propose two encryption algorithms that largely treat these deficiencies and boost the security strength through novel integration of the random fractional fourier transforms, phase retrieval algorithms, as well as chaotic scrambling and diffusion. We show through detailed experiments and statistical analysis that the proposed enhancements significantly improve security measures and immunity to attacks
530			_aIssued also as CD
653		4	_aColor image encryption
653		4	_aFractional discrete fourier transforms
653		4	_aRandom transforms
700	0		_aMahmoud Hamed Annaby , _eSupervisor
700	0		_aMohamed Emad Rasmy , _eSupervisor
700	0		_aMuhammad Ali Rushdi , _eSupervisor
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c64447 _d64447