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From: Steven Woody <narkewoody@gmail.com>
To: libtiff <tiff@lists.maptools.org>
Organization: 2046
Date: Thu, 04 Aug 2005 22:45:51 +0800
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Subject: [Tiff] tiff unknown field of tag
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Status:   


i got back some scaned tiff's from a photo lab. openning with xv or gimp
just got a warning message: unkown field of tag 34665(0x8769). i want to know
what's wrong with thoese files and how do a work around.

below is the output of tiffinfo on a tiff file in question,

,----
| TIFFReadDirectory: Warning, /home/portfolio/scan/zmm/16-4.tif: unknown field with tag 34665 (0x8769) encountered.
| TIFF Directory at offset 0x8
|   Subfile Type: (0 = 0x0)
|   Image Width: 1580 Image Length: 2338
|   Resolution: 1800, 1800 pixels/inch
|   Bits/Sample: 8
|   Compression Scheme: None
|   Photometric Interpretation: RGB color
|   Date & Time: "2005:08:04 19:54:07"
|   Samples/Pixel: 3
|   Rows/Strip: 2338
|   Planar Configuration: single image plane
|   ICC Profile: <present>, 668992 bytes
|   Photoshop Data: <present>, 5624 bytes
|   XMLPacket (XMP Metadata):
|   ...
`----

for the tiffinfo output, i still has two questions desiring kind help from
you. 

1. what means "ICC Profile: <present>" ? and what is ICC ?

2. i noticed this file is uncompressed. so what's the benefit the lab save
   result in tiff rather than a bmp?

thanks in advance.


-- 
steven woody (id: narke)

Celine: I had worked for this old man and once he told me that he had
spent his whole life thinking about his career and his work. And he
was fifty-two and it suddenly struck him that he had never really
given anything of himself. His life was for no one and nothing. He was
almost crying saying that.

	- Before Sunrise (1995)

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