Transcript Digital Manipulation presentation

Digital Manipulation
Amanda Franklin
Frances Nicholson
What is digital manipulation?
• The process of altering the existence of a
digital image or video.
• It can include any level of change.
– Cropping, color enhancement, removing
objects, altering the setting, combining two or
more images
ARGUMENTS
Digital manipulation
is acceptable as long
as the content of the
image is not altered.
The public should be
sophisticated enough to
realize that digital
manipulation is occurring.
Examples of Content Altering Images
QuickTime™ and a
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British politicians Ed Matts and Ann Widdecombe
The Other Side
• Photo manipulation has been
around almost as long as
photography itself.
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Hippolyte Bayard (1840)
Civil War
Abraham Lincoln (~1860)
Joseph Stalin (1920s)
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Joseph Stalin and Propaganda
Joseph Stalin and Nikolai Yezhov, 1940
Famous Examples
John Kerry - Peace Rally,
Mineola, NY (June 1971)
Jane Fonda - Political Rally,
Miami Beach, FL (August 1972)
• In 1982 National Geographic used a
horizontal photo of the pyramids in Egypt
and created a vertical cover from the
picture.
• In 1994 Time Magazine used a picture of
O.J. Simpson on the cover of the
magazine in which his face had been
darkened.
Errors in Digital Manipulation
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TIFF (Uncompressed) decompressor
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Video Manipulation
• Splicing, speeding up
• Video insertion and deletion
QuickTime™ and a
TIFF (Uncompressed) decompressor
are needed to see this picture.
What can be done to solve this
problem?
• Identify which images have been altered
– Watermark
– Caption
– Hologram on IDs