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January 2006

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2006.01.03 11:52 "Strip Vs Tile", by Sonia S Kumar
2006.01.03 14:47 "Re: Strip Vs Tile", by Bernie Pallek
2006.01.03 16:37 "Re: Strip Vs Tile", by Joris Van Damme
2006.01.03 18:42 "Re: Strip Vs Tile", by Bernie Pallek
2006.01.04 18:57 "Re: Strip Vs Tile", by Chris Cox
2006.01.04 20:14 "Re: Strip Vs Tile", by Andrey Kiselev
2006.01.03 16:09 "Re: Strip Vs Tile", by Bob Friesenhahn

2006.01.03 18:42 "Re: Strip Vs Tile", by Bernie Pallek

> IMO, what Bob said makes a lot more sense. If you don't need 
> tiles, use strips. Saving large images (say over 4 kilopixels 
> wide and high), you need tiles. I should add that for certain 
> color spaces and compression modes, like black and white G3 or 
> G4 compressed, it is customary to save a single strip even if 
> the image is somewhat bigger then 4 kilopixels.

Agreed.  I misinterpreted the original question as asking when to bother
with fragmentation at all (strips OR tiles).

> > When saving data in general, IMO, you should try to preserve as much
> > of the original "framing" as possible.  In other words, preserve
> > byte-ordering, stripping, compression format, IFD layout, whatever
> > offsets you can, and even any custom tags that your software may not
> > understand or care about.
> 
> That is bad advice. Don't ever blindly preserve. You may be preserving
> data that is no longer valid after your operations.

OTOH, you may be losing data that are still valid (and meaningful) after
your operations, and what's lost is gone.  But the spec /does/ agree with
your POV.  :-)