Re: Display external TIFF file

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#6697

From: Aandi Inston
Date: Thu, 03 May 2007 07:38

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asproat1@hotmail.com wrote:

>I've found and implemented the following code to display external JPEG
>files and it works well:

This works (mostly) because the JPEG file format is, by coincidence,
exactly the same as the format required by the DCTDecode filter.
>
>But when I execute the same code with a TIFF file, substituting /
>RunLengthDecode for the encoding, all I get is a one pixel high line.

A TIFF file contains tags, pointers, and pixel data, in tiles or
stripes, uncompressed or compressed with LZW, Run length, ZIP or JPEG.
There is certainly no filter in PostScript for this or any other file
format except JPEG.

I have heard of an exercise in reading TIFF files with PostScript, but
it would have been thousands of lines of code, parsing a byte at a
time.
----------------------------------------
Aandi Inston  
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From: quite@dial.pipex.con (Aandi Inston)
Newsgroups: comp.lang.postscript,adobe.postscript.programming
Subject: Re: Display external TIFF file
Date: Thu, 03 May 2007 07:38:17 GMT
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