POV-Ray : Newsgroups : povray.general : JPEG2000 : Re: JPEG2000 Server Time
2 Nov 2024 11:23:33 EDT (-0400)
  Re: JPEG2000  
From: Warp
Date: 7 Mar 2004 11:54:40
Message: <404b53d0@news.povray.org>
Tom Galvin <tom### [at] imporg> wrote:
> > 1. Reduction in file size with less loss in image quality. 

> That's what PNG is for.

  How does PNG help to reduce file sizes compared to JPEG?

  In only very few cases a PNG will be smaller than a good-quality JPEG.
In most cases the JPEG will be 5-10 times smaller. And the JPEG2000 even
smaller than that.

> Yup.  If it ain't broke, don't fix it.

  But JPEG is "broken". It causes files to be larger and have less
quality than would be necessary. You demonstrably can have smaller
file sizes with better image quality. Thus JPEG is not optimal
and thus "broken". A fix has its place.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -


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