000			02772cam a2200337 a 4500
003			EG-GiCUC
005			20250223031744.0
008			170717s2016 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.20.03.M.Sc.2016.Ma.D
100	0		_aMarwa Mamdouh Emam Khalef
245	1	0	_aDigital image steganography in spatial domain / _cMarwa Mamdouh Emam Khalef ; Supervised Fatma A. Omara , Abdelmgeid Amin Aly
246	1	5	_aإخفاء البيانات داخل الصور الرقميه في المجال المكاني
260			_aCairo : _bMarwa Mamdouh Emam Khalef , _c2016
300			_a100 Leaves : _bcharts , facsimiles ; _c30cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Computers and Information - Department of Computer Science
520			_aThe growth of communication technologies and the wide usage of the social media through the internet have greatly facilitated transfer of data. Because many digital multimedia transmissions on the internet, some important data needs to be protected during transmission. Therefore, hiding the transferred data is needed. One of the most important techniques of data hiding is a steganography. Steganography has been widely used in the recent historical times and the present day. It can be defined as the study of invisible communication that usually deals with the ways of hiding the existence of the communicated message. It is used to hide the message signal into a host signal without any perceptual distortion of the host signal. By using steganography, information can be hidden in different carriers such as video files, audio files, text files or images and then transmitted secretly to the receiver. The work in this thesis concerns about digital image steganography in spatial domain. Two new image steganography methods have been proposed. The first proposed method is a modified image steganography method based on LSB (Least Significant Bit) technique. The embedding in this method was done without making explicit modifications to the cover image. The work has been done with the RGB color image on two layers; Blue layer and Green layer. The message is represented by six binary bits using LSBraille method (Braille method of reading and writing for blind people) instead of using the ASCII encoding format
530			_aIssued also as CD
653		4	_aCommunication technologies
653		4	_aDigital image steganography
653		4	_aSpatial domain
700	0		_aAbdelmgeid Amin Aly , _esupervisor
700	0		_aFatma A. Omara, _esupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aShimaa _eCataloger
942			_2ddc _cTH
999			_c61590 _d61590