edthecynic
Censored for Cynicism
- Oct 20, 2008
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Depending on the type of scanner, the image can easily be distorted. A $100,000 drum scanner, that no one uses any more, would have scanned the newsprint halftone very accurately, but a cheap flatbed scanner like everyone uses today is notorious for distorting the image. For those of us experienced in the printing industry, the bottom photo is a very obvious rescan of a newsprint halftone. One of the most obvious reasons is the loss of detail. In order to get rid of the dot pattern of the halftone you must blur the image, which also causes loss of detail in addition to the loss of detail from the 65 or 85 line screen used in newsprint. Photos look sharp in a magazine because they use coated stock which has relatively little dot gain rather than newsprint which has a 30% dot gain, and mags use 133 or 150 line screens and art mags use 175 or 200 line screens.Well, then the scan changed the eye and eyebrow shape. And, of course, that explains the different pixelation on the border of his face in the top photo.The top one is the unaltered original and the bottom is a scan of the screened newspaper print, called a halftone which is made up of black and white dots. You can tell that the top one is the original and has not been softened by the texture on the inside of the hood which would have become smoothed out by the blurring needed to soften the image.Yup. He's really baby-faced, in the retouched photo (from the "hoodie march" group).
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Not as much in the un-altered one, though (from the Miami Herald).
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The uneven tone is a dead giveaway that the bottom photo is a scan of the newsprint halftone. The ink dots spread out as they are absorbed by the porous paper. Dark areas where the black ink dots are closest together merge together as they spread giving the appearance of a jump in tone as the spreading dots connect together.
So in typical dishonest CON$ervoFascist fashion, the original is called a forgery and the altered photo passed off as the original.
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