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From: ali@polya.Stanford.EDU (Ali T. Ozer)
Newsgroups: comp.sys.next,comp.graphics
Subject: Re: NeXT's Tiff format
Message-ID: <5910@polya.Stanford.EDU>
Date: 6 Jan 89 15:04:48 GMT
References: <18758@agate.BERKELEY.EDU>
Reply-To: aozer@NeXT.com (Ali Ozer)
Organization: .
Lines: 24

In article <18758@agate.BERKELEY.EDU> edmoy@violet.berkeley.edu writes:
> ... the TIFF files
>used in the Webster's dictionary could not be read into MacVision or Canvas
>on the Macintosh (both these programs support TIFF, MacVision even creates
>TIFF files, that Canvas can read).

TIFF files used for Webster use a special compression scheme.
(This was done to reduce the space requirements of the hundreds
of pictures.) Thus TIFF programs on other machines will not
be able to read the Webster pictures.

If you still wish to create standard TIFF (or PS) versions of the
Webster pictures, the best way at the moment is to be to dislay 
the picture and use Scene (in the /MyDisk/Programming/Demos directory)
to grab it. Then you can save it as TIFF, Ascii PS, or Binary PS.
The saved image will have 2 bits per pixel and no alpha.

Another TIFF problem you might run into is that the TIFF routines in
0.8 are only able to read/write TIFF 4.0 files. Thus any TIFF 5.0
files created with a Mac program will not be read in. You should make
sure your programs on other machines save images in TIFF 4.0 format.

Ali Ozer, NeXT Developer Support
aozer@NeXT.com