On Wed, 26 Sep 2001 10:17:56 -0400, Thorsten Froehlich wrote:
>In article <3BB1D33F.2C19078A@twoalpha.net> , Dean <dea### [at] twoalphanet>  
>wrote:
>
>> I think the Adobe Photoshop JPG that it was originally, was
>> made to load 'fast' and not accurate.
>
>Yes, it is very possible that the problem is the "load fast", which probably
>implies it is the progressive encoding version (i.e. when you download a
>picture you first would see a low quality version that gets better as the
>download progresses).

Progressive encoding isn't marker type 0xDB, though.  Here's what the JPEG
FAQ has to say about various Photoshop incompatibilities:

  Old decoders that don't handle progressive JPEG will often give rather
  cryptic error messages when fed a progressive JPEG.  If you get a complaint
  like "Unsupported marker type 0xC2", then you definitely have a progressive
  JPEG file and a non-progressive-capable decoder.  (See part 2 of this FAQ
  for information about more up-to-date programs.)  Or you may get a generic
  error message that claims the file is corrupted or isn't JPEG at all.

  Adobe Photoshop and some other prepress-oriented applications will produce
  four-channel CMYK JPEG files when asked to save a JPEG from CMYK image mode.
  Hardly anything that's not prepress-savvy will cope with CMYK JPEGs (or any
  other CMYK format for that matter).  When making JPEGs for Web use, be sure
  to save from RGB or grayscale mode.

  Photoshop also has a habit of stuffing a rather large thumbnail/preview
  image into an application-private segment of JPEG files.  Some other
  applications (notably early releases of Sun's Java library) are known to
  choke on this data.  This is definitely a bug in those other applications,
  but the best available workaround is still to tell Photoshop not to save
  a thumbnail.  If you're putting up an image on the Web, having a thumbnail
  embedded in it is just a waste of download time anyway.

-- 
#local R=<7084844682857967,0787982,826975826580>;#macro L(P)concat(#while(P)chr(
mod(P,100)),#local P=P/100;#end"")#end background{rgb 1}text{ttf L(R.x)L(R.y)0,0
translate<-.8,0,-1>}text{ttf L(R.x)L(R.z)0,0translate<-1.6,-.75,-1>}sphere{z/9e3
4/26/2001finish{reflection 1}}//ron.parker@povray.org My opinions, nobody else's

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