"Rick (Kitty5)" wrote:

> > > This is much better, just one question ,why the hell a PNG? That damn
> file
> > > format makes one image look different in nearly every program i view it
> > > with.
> >
> > Get a _real_ newsreader (not Microblows-crap) and you'll see the pics.
>
> Yes but as I mentioned, PNG's are not displaed the same on every program,
> MSIE based programs display them MUCH larger and brighter, Paint shop pro
> makes the image look much darker, the list goes on and on!
>
> This is supposed to be a key factor in digital artwork, whats the point in
> spending hours creating the image if it's going to be displayed with
> different gamma setting on every program that displays it!!
>
> you have to target your work to the aduience, and if they are all using the
> same software as yourself, then no problem, but that is NEVER the case,
> people will decide on there software by either finincial or emmotional
> reasons.

If those are your main concerns, then that reasoning stands to favor PNG over
TGA or JPG. Depending on the system, TGA/JPG's look different and you have no
hope of even guessing how the artist originally intended them. PNG at least
stores the info.

Perhaps at the moment some versions give you bad display because they have
problems. At least these can be corrected.

With other formats, the gamma issue is still around (especially on the PC)
Some programs do gamma correction when displaying, and some do not. So even
with JPG, those problems occur.

Also, one used to be able to say 'Mac gamma' and 'PC gamma' and in each case
be speaking of just one thing. This is no longer true. Just as Mac's had to
come to grip with the fact that all monitors did not have 72 pixels per inch,
so to we need to deal with the gamma issue, and not just try to ignore it.


> a compresseed TGA for rendering purposes will never grow that large from
> most scenes (up to 1024x768) and compress well with ZIP or RAR for storage.
> (same for windows BMP for that matter)
>
> JPEG compression is the standard for displaying images over the internet,
> don't forget you can adjust the compression so it suits the image better!

For the last few years, PNG has been the format, and the W3C has recommended
it. Opera has handled them well for quite a while.

Now, I will say that for this newsgroup often JPG will suit the image fine. In
this case, however, given the large expanses of flat color ( the black
especially ), and the subtle details in the actual image, I would say that PNG
is a good choice for this one. Even on 16-bit display and using 100% quality,
the JPG version looses much of the clarity of the image.

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