Cameras
Epson and Kodak have produced cameras with security features such as the Epson PhotoPC 3000Z and the Kodak DC-290. Both cameras added irremovable features to the pictures which distorted the original image, making them unacceptable for some applications such as forensic evidence in court. According to Blythe and Fridrich, "either camera can provide an undisputable proof of the image origin or its author".
A secure digital camera (SDC) was proposed by Mohanty, et al. in 2003 and published in January 2004. This was not the first time this was proposed. Blythe and Fridrich also have worked on SDC in 2004 for a digital camera that would use lossless watermarking to embed a biometric identifier together with a cryptographic hash.
Read more about this topic: Digital Watermarking
Famous quotes containing the word cameras:
“Guns have metamorphosed into cameras in this earnest comedy, the ecology safari, because nature has ceased to be what it always had been—what people needed protection from. Now nature tamed, endangered, mortal—needs to be protected from people.”
—Susan Sontag (b. 1933)
“While the music is performed, the cameras linger savagely over the faces of the audience. What a bottomless chasm of vacuity they reveal! Those who flock round the Beatles, who scream themselves into hysteria, whose vacant faces flicker over the TV screen, are the least fortunate of their generation, the dull, the idle, the failures . . .”
—Paul Johnson (b. 1928)