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P3D JPG destruction

  • From: Ole Hansen <oha@xxxxxxxxxx>
  • Subject: P3D JPG destruction
  • Date: Fri, 8 May 1998 00:38:14 +0200 
I got the following results when converting PNG to JPG with the
programs at hand. I used two anaglyphs from the website of
Stereoskopklubben as testmaterial, one b&w and one color:
Svendborgsund (skibana.png - 234 kb) and
The rock (klipana.png - 525 kb).
In all cases the anaglyphs were saved in highest quality,
except Photoshop, where I saved in High quality.

		      skibana.jpg         klipana.jpg

3D Factory		30 kb		27 kb
Image In		213 kb		258 kb 
Paint Shop Pro 4	65 kb		59 kb
Paint Shop Pro 5	173 kb		220 kb
Photo Enhancer		116 kb		122 kb
Photo Ez		45 kb		42 kb
Photo Impact		214 kb		260 kb 
Photoshop		90 kb		75 kb
Photo Works		40 kb		37 kb

The only program that do not destruct anaglyphs is Photoshop,
and only when using High quality and Max quality where the
filsize is doubled compared with High quality.
regards Ole Hansen


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