000			02928cam a2200397 i 4500
999			_c594766 _d594766
001			946160458
003			US-DLC
005			20190818080755.0
008			160408s2016 maua b 001 0 eng
010			_a2016015126
015			_aGBB6J3869 _2bnb
020			_z9780262035347
020			_z0262035340
020			_a9780262537001
020			_z0262537001
024	8		_z40026570200
035			_a(OCoLC)946160458
040			_aDLC _beng _erda _cDLC _dYDXCP _dBTCTA _dBDX _dYDX _dGZM _dSTF _dUBY _dYUS _dOCLCO _dVMI _dOCLCQ _dOCLCF _dUKMGB _dDLC _dAU
042			_apcc
049			_aAlfaisal Main Library
050	0	0	_aTR147 _b.F36 2016
100	1		_aFarid, Hany, _eauthor
245	1	0	_aPhoto forensics / _cHany Farid
264		1	_aCambridge, MA : _bThe MIT Press, _c[2016]
300			_aix, 323 pages : _billustrations, color ; _c23 cm
336			_atext _btxt _2rdacontent
337			_aunmediated _bn _2rdamedia
338			_avolume _bnc _2rdacarrier
504			_aIncludes bibliographical references (pages 315-317) and index
505	0		_aPhysics-based -- Geometric -- Optical -- Sensor -- File -- Pixel -- Case studies -- Background
520			_aPhotographs have been doctored since photography was invented. Dictators have erased people from photographs and from history. Politicians have manipulated photos for short-term political gain. Altering photographs in the predigital era required time-consuming darkroom work. Today, powerful and low-cost digital technology makes it relatively easy to alter digital images, and the resulting fakes are difficult to detect. The field of photo forensics--pioneered in Hany Farid's lab at Dartmouth College--restores some trust to photography. In this book, Farid describes techniques that can be used to authenticate photos. He provides the intuition and background as well as the mathematical and algorithmic details needed to understand, implement, and utilize a variety of photo forensic techniques. Farid traces the entire imaging pipeline. He begins with the physics and geometry of the interaction of light with the physical world and proceeds through the way light passes through a camera lens, the conversion of light to pixel values in the electronic sensor, the packaging of the pixel values into a digital image file, and the pixel-level artifacts introduced by photo-edition software. Modeling the path of light during image creation reveals physical, geometric, and statistical regularities that are disrupted during the creation of a fake. Various forensic techniques exploit these irregularities to detect traces of tampering. A chapter of case studies examines the authenticity of viral videos and famously questionable photographs including "Golden Eagle Snatches Kid" and the Lee Harvey Oswald backyard photo. -- Back cover
650		0	_aPhotography, Handworked
650		0	_aPhotography _xRetouching
650		0	_aPhotographs _xIdentification
650		0	_aImage analysis
650		0	_aForensic sciences
655		0	_2local _94 _aPrint books.
942			_2lcc _cBOOKS