[OS X TeX] converting jpg to eps

Piet van Oostrum piet at cs.uu.nl
Thu Mar 9 17:13:33 CET 2006


>>>>> Arthur Snoke <snoke at vt.edu> (AS) wrote:

>AS> Thanks for the chart below that explains about prefixes like eps2:
>AS> I did some tests that I summarize below.  My conclusions are that

>AS> (1) convert always has a middle step of the IM internal format -- never
>AS>      a wrapper around the original .jpg file

I compared the original jpg file with the output from convert eps2: and the
latter contains an almost verbatim copy of the jpg inside. But a few bytes
are different, so I guess that you are right and it does a JPEG decode and
an encode, which of course decreases the quality slightly. Therefore
jpeg2ps should be preferably, certainly with the -b option to save space.
-- 
Piet van Oostrum <piet at cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP 8DAE142BE17999C4]
Private email: piet at vanoostrum.org
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