david dailey wrote:
> At 11:17 AM 11/21/2005, you wrote:
>
>> If you want to convert a gif to SVG vector objects, then you are somewhat
>> screwed. There are bitmap to vector conversion programs such as adobe
>> Streamline and the Corel Trace (bundled with CorelDraw), but they don't work
>> very well in large part. I also found this, by searching on google:
>> http://www.scale-a-vector.de/svg-test4-e.htm
>>
> Of course, if the gif file is very simple then these tracing programs
> will work better. If the file was originally drawn as a vector image
> (supposing no gradients that might have forced dithering) then
> converting back via Streamline, Corel Trace or half a dozen free and
> shareware programs should be fairly straightforward.
>
> This reminds me of a question I'll bet someone here knows the answer to:
>
> Last I looked, patents in the US last only 20 years (I'm assuming
> international harmonization as via TRIPPS and Uruguay and so forth)
> mean that most countries probably share this 20 year duration to patents.
>
The US patent is expired.. others are collapsing soon ;-)
> It seems by this reckoning that the patent covering the compression
> algorithm underlying GIF (at least GIF87), oughta be about due to
> expire. Does this signal any likelihood of GIF-related software
> appearing in open source projects? or is PNG just so much superior? I
> don't really know about the internals of either.
>
> David Dailey
>
>
Cool Things PNG has
* Variable transparency ... the wild things you can do with this in
web sites is astounding.(IE requires some back flips to make this
work and only if you go with 24bit PNG)
* Full color depth range from only a couple bits to Lossless color
24 bit color possible which makes it good for storing art in
because the compression is better than tif and it is still
viewable with browsers
Questionably Cool Things GIF has
* animation similar but inferior to SMIL
PNGs features are not fully supported everywhere...IE is one of the worst.
--
Google Me at : Decision Driven Rolegaming
-- Lance Dyas
The Decision Driven Gaming Center
"Creating a language for describing how we do things to enable better
visualization in roleplay."
http://www.dyasdesigns.com/roleplay
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