000			02133nam a22002897a 4500
003			KOHA
005			20230418145148.0
008			221004d2022 cy ||||| m||| 00| 0 eng d
040			_aCY-NiCIU _beng _cCY-NiCIU _erda
041			_aeng
090			_aYL 2470 _bJ67 2022
100	1		_aJoseph, Jabani
245	1	3	_aAN EVALUATION OF DWT-SVD AND DCT-SVD IN NON-BLIND IMAGE WATERMARKING / _cJABANI JOSEPH; SUPERVISOR: ASST. PROF. DR. MARY AGOYI
264			_c2022
300			_a71 sheets; _c31 cm. _eIncludes CD
336			_2rdacontent _atext _btxt
337			_2rdamedia _aunmediated _bn
338			_2rdacarrier _avolume _bnc
502			_aThesis (MSc) - Cyprus International University. Institute of Graduate Studies and Research Information Technologies Department
504			_aIncludes bibliography (sheets 66-71)
520			_aABSTRACT One of the most essential factors in resolving the problem of copyright infringement, illegal modification, and distribution of intellectual property is the originality of digital content. Watermarking can help with these issues. The process of digital watermarking involves embedding a watermark signal into a cover content, also known as original content. Digital watermarking algorithms must improve as the internet grows and technology advances in order to safeguard content from unauthorized modifications and attacks that are always being invented. In this study, a robust non-blind image watermarking system based on a hybrid DWT-SVD (Discrete wavelet Transform with Singular Value Decomposition) is studied and compared to DCT-SVD (Discrete Cosine Transform with Singular Value Decomposition) in this research. The effect of increasing the watermark strength in the cover image was analyzed to test for imperceptibility and resistance. After examining the strengths and limitations of the two algorithms in question, they were exposed to a variety of attacks.
650			_aDigital watermarking _vDissertations, Academic
650			_aWatermarks _vDissertations, Academic
700	1		_aAgoyi, Mary _esupervisor
942			_2ddc _cTS
999			_c285349 _d285349