Re: Scanning question (Is destruction of old tech docs a moral crime?)

[Paul Koning via cctalk]

> On Jul 21, 2019, at 6:20 PM, Jon Elson via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> On 07/21/2019 04:48 PM, ben via cctalk wrote:
>> It is not the DPI that is problem on some scans, but they used
>> a LOSSY format to store the data. JPEG IS NO!
> Yes, ABSOLUTELY!  JPEG is designed for things that have smooth tones, like 
> people and outdoor photographs.  It is horrible with anything that has sharp 
> contrasts like letter outlines and line drawings.

Furthermore, it is utterly unfit as a storage format for files being edited 
(since every save/reopen loses more detail).  It's just barely tolerable as a 
source file format in digital cameras, and it's of course appropriate as a 
final format for continuous tone photo-like images.

It's always amazing to see ignorant "graphic artists" uses JPEG for corporate 
logos.  Those go into the "you get what you pay for" bucket.

        paul