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Re: Image standards



On 5/22/07, Toshio Kuratomi <a badger gmail com> wrote:
On Tue, 2007-05-22 at 13:45 -0500, Mike McGrath wrote:
> Anyone have a problem with us using SVG for image sources and PNG for
> final copies on our websites?  We can grandfather this in but mizmo
> suggested it on the websites-list.  I think its a good idea.

It depends on what is meant by "image".  png and jpeg have vastly
different compression characteristics.  Using jpeg where appropriate can
save someone on dialup a tremendous amount of time.  However, many of
the images we create as SVG are going to be the kind that store well as
png...

Sure, but often images are converted to 24bit png even when that is
not needed. I suggest (if not already done) using ImageMagick and a
recipe like:

convert -quality 0 +dither -colors 256 infile.png out.png

whenever possible to maximize the gains of compression

HTH

Gianluca


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