The perils of digital technology: Lies, damned lies and scans
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David Kriesel, a doctoral student in computational geometry at Bonn University, has no academic interest in compression algorithms. When a former client asked him about a bizarre incident involving a photocopier, his first reaction was, "You guys have to be kidding me." The client called him when they found that a Xerox machine had scanned an architectural drawing of a house in such a way that numbers from one part of the original drawing wound up replacing those in another portion. The mystery proved too hard to resist.
Image compression in document scanners: wh47 c0u1d p055i61y g0 wr0ng?
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David Kriesel, a doctoral student in computational geometry at Bonn University, has no academic interest in compression algorithms. When a former client asked him about a bizarre incident involving a photocopier, his first reaction was, "You guys have to be kidding me." The client called him when they found that a Xerox machine had scanned an architectural drawing of a house in such a way that numbers from one part of the original drawing wound up replacing those in another portion. The mystery proved too hard to resist.
Image compression in document scanners: wh47 c0u1d p055i61y g0 wr0ng?