Digital BW, The Print

> From: Anthony G. Atkielski [mailto:anthony@...]
>
> PNG, like JPEG2000, is largely a solution looking for a problem.

The main problem that PNG was intended to solve, as I understand it, was the
sudden decision by Unisys to sue everyone who was using GIF. That's recently
become a non-issue, since the patent has finally expired, although there are
other good things about PNG for graphics (as opposed to photo) images.

JPEG2000, however, has real value. I don't use it much, because I shoot all
digital now, so I archive raw files. But if I were doing a lot of film
scanning, I would certainly use JPEG2000 for archiving all my raw scans,
because it gives the greatest degree of compression without visible
artifacts, and can preserve more than eight bits of resolution.

--

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...