Books > Arts & Architecture > Photography & photographs
|
Not currently available
Photo Forensics (Hardcover)
Loot Price: R1,750
Discovery Miles 17 500
|
|
Photo Forensics (Hardcover)
Series: The MIT Press
Supplier out of stock. If you add this item to your wish list we will let you know when it becomes available.
|
The first comprehensive and detailed presentation of techniques for
authenticating digital images. Photographs 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, 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-editing 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 video and famously
questionable photographs including "Golden Eagle Snatches Kid" and
the Lee Harvey Oswald backyard photo.
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.