Scanning docs for bitsavers

Fred Cisin cisin at
Tue Dec 3 14:22:38 CST 2019

>    > JBIG2 .. introduces so many actual factual errors (typically
>    > substituted letters and numbers)
On Tue, 3 Dec 2019, Noel Chiappa via cctalk wrote:
> It's probably worth noting that there are often errors _in the original
> documents_, too - so even a perfect image doesn't guarantee no errors.

. . . and how often will the randomizing corruption actually result in 
changing an error to what it SHOULD HAVE BEEN?  :-)

> Although looking again at the PDF, the two digits in question are quite 
> clear and crisp, and don't seem like they could be scanning errors.

Watch out.  PDF with OCR can show you a clear and crisp  [possibly wrong] 
interpretation of the scan, not what the actual scan looked like.

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