Hmm ...

I have no problem with PNG, but I have been reluctant to use
it, because I was not sure that everyone could view the images.

Yes, yes ... 1000 images.  But the fact is, there can be as few
as zero images posted to this list every day, and rarely more than
five or six.

Maybe the best idea is to simply go back to making sure that
the attachment size is in the subject line of the e-mail and give
people on the list the choice of downloading or not.  It seems actually
quite rare that someone posts an image greater than 200k to the
list and if it's really big, someone will let them know that it's
causing problems.

Aaron




"Stefan Persson" <azy### [at] teliacom> wrote in message
news:3f4b64e4@news.povray.org...
> The following images was converted with Adobe ImageReady from the original
> PNG-output from POV-Ray.
> I just want to show the difference in size from the 24-bit PNG to the
> "Medium quality" JPG.
> Give or take some decimals the PNG is 209 KiB and the "Medium" JPG is 37,4
> KiB.
> That is roughly a 82% reduction in size with only a slight loss in
quality.
> You could even go for the
> no loss quality (HIGH, 100 or whatever setting your program has) and still
> get a 42% reduction.
> Let's say we post a 100 images and 1000 people download them. With no
> compression
> that is, with my example above, that is something like 20 GiB. Compress
and
> you will get
> 3.5 GiB. Worth the trouble, isn't it?
>
> Of course this is image dependent with nature type of images suffering
less
> than others.
> The "Low quality" JPG was posted just as a reference but even here I have
> problems with spotting
> any severe compression artefacts.
>
> What I'm really after here is that it's not necessary to post a high
quality
> image when you want to
> show a WIP. I can accept a full size image when it's finished but not
> before.
>
> I use a 2Mbit connection so I don't really have a problem, but I think
it's
> for everyones good to reduce the size.
> Like mentioned earlier in the thread, not only it reduces the space on the
> server but it also cuts down traffic.
>
>
> /Stefan
>
>
>
>

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