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June 1999

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1999.06.03 19:48 "Large File Support", by Bruce Forsberg
1999.06.04 03:45 "Re: Large File Support", by Frank Warmerdam
1999.06.04 07:32 "Re: Large File Support", by Rob Tillaart
1999.06.07 07:05 "Re: Large File Support", by Rainer Wiesenfarth
1999.06.08 21:14 "Re: Large File Support", by Peter Smith
1999.06.08 21:58 "Re: Large File Support", by Ed Grissom
1999.06.08 22:52 "Re: Large File Support", by Peter Smith
1999.06.09 01:27 "Re: Large File Support", by Martin Bailey
1999.06.09 06:50 "Re: Large File Support", by Owen Pearn
1999.06.09 14:33 "Re: Large File Support", by Martin Bailey
1999.06.09 08:07 "Re: Large File Support", by Rob Tillaart
1999.06.04 18:35 "Re: Large File Support", by Bruce Forsberg
1999.06.07 13:03 "Re: Large File Support", by Frank Warmerdam
1999.06.09 03:05 "Re: Large File Support", by <glen@lumisys.com>
1999.06.09 13:13 "Re: Large File Support", by Ed Grissom
1999.06.09 13:33 "Re: Large File Support", by Frank Warmerdam
1999.06.09 14:08 "Re: Large File Support", by Ed Grissom
1999.06.09 18:50 "Re: Large File Support", by Chris Barker
1999.06.09 18:41 "Large File Support", by Chris Barker
1999.06.10 13:21 "Re: Large File Support", by Chris Hanson
1999.06.10 13:52 "Re: Large File Support", by Frank Warmerdam
1999.06.10 14:37 "Re: Large File Support", by John Aldridge
1999.06.10 15:10 "Re: Large File Support", by Peter Smith
1999.06.10 16:56 "Re: Large File Support", by Chris Barker
1999.06.14 11:16 "Re: Large File Support", by Martin Bailey
1999.06.14 14:58 "Re: Large File Support", by Tom Lane
1999.06.14 15:30 "Re: Large File Support", by Eric Shapiro
1999.06.14 16:27 "Re: Large File Support", by Chris Barker
1999.06.14 15:51 "Re: Large File Support", by Martin Bailey
1999.06.09 15:52 "Re: Large File Support", by Ed Grissom
1999.06.10 09:48 "Re: Large File Support", by Klaus Bartz
1999.06.10 13:05 "Re: Large File Support", by Chris Hanson
1999.06.11 01:48 "Re: Large File Support", by <glen@lumisys.com>

1999.06.14 16:27 "Re: Large File Support", by Chris Barker

Eric Shapiro wrote:
> 
> >I agree with that goal, but I think that Frank Warmerdam's idea (allow
> >multiple separate TIFF files to be logically "tiled" together to form a
> >huge image) is a more practical approach, for the reasons already
> >mentioned by him and John Aldridge.
> 
> One nice thing that Apple did with QuickTime was that if a user opened
> a compressed PICT file on a system without QuickTime, the image displayed
> was a message suggesting that the user install QuickTime.
> 
> You can do this with your "control" file -- put an actual 1 bpp TIFF
> image in it with the message "This file requires a newer TIFF viewer".
> 
> Splitting a single image into multiple files is a kludge, but it does
> have the added plus of working with operating systems that don't support
> large (> 2GB) files yet.
> 
> But, in the long run, a real 64-bit image file format is probably needed.
> Would the current compressors (LZW, JPEG, etc) scale to 64-bit images,
> though? That is, can you even compress a > 2GB image using the standard
> JPEG library?

If tiled formats are standard (entirely reasonable with files this
large)
the the present compressors will do fine.

> 
>  -Eric
> 
> -------------------------------------------------
>  Eric Shapiro                   eric@relium.com
>  Relium Corp.                    www.relium.com
> -------------------------------------------------

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