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A comment on The Rest of the Lenna Story. Parent comment

Re:The Rest of the Lenna Story by mynameishere on Saturday August 31, 2013 @10:47PM (#6308904)
Then we might be able to use it for compression research.

Unless they got the negative from playboy, I don't think it's an appropriate image to use anymore.

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Re:The Rest of the Lenna Story by sillysaurus2 on Saturday August 31, 2013 @10:57PM (#6308935)
Really? That's very interesting. What terms should I search for in order to find out for more about why negatives are so important?

Or is it just the fact that photography back then was done with negatives, and anything but the original photo is unsuitable for compression research?

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Re:The Rest of the Lenna Story by brazzy on Sunday September 01, 2013 @08:14AM (#6310060)
a 512x512 pixel scan of a printed image really isn't ideal source material. Nowadays you definitely want something larger, and to get that in good quality you need the negatives.
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