File formats

[Rick Bowers]

The GIF LZW patent expired in the U.S. last July.   Here is a link to the 
Unisys page that describes the patent information: 
http://www.unisys.com/about__unisys/lzw

At 12:09 PM 4/28/2004, you wrote:
>On Wed, Apr 28, 2004, Roger Oberholtzer wrote:
> >Simple rule of thumb: Use non-lossy format for non-photographic images
> >(e.g., diagrams, line art). Otherwise you get fuzzy lines. GIF/PNG is good
> >for this type of image. For photos, JPEG is still the best choice. The
> >effects of a lossy format like jpeg is not seen in photos, which is not
> >suprising as that is what jpeg was designed for. Non-photo images are most
> >effected by the wrong format.
>
>Gif files have limited color capabilities, not to mention a history of
>patent issues.
>
>There are several different tiff formats, and tiff files may include
>compression.
>
>Bill
>--
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