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Thread-Topic: TIFF - Unknown field with tag 34665 ( Part 3 )
Thread-Index: AcT5j8F0JDMSIvLnRJajBFwXi8rEwQADpmAQ
From: "Claude Houle" <CHoule@mediagrif.com>
To: "libTIFF (E-mail)" <tiff@remotesensing.org>
Cc: 
Subject: [Tiff] RE: TIFF - Unknown field with tag 34665 ( Part 3 )
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Hi Bob,

I've download libTIFF Win32 Binaries and installed it on my machine to =
try to
reduce the Sample/Pixel Amount like you suggested, but nothing in the =
Man
Pages seem to be accomplishing that specific option.

Is it another command than tiffcp ?

Thanks,

Claude

-----Original Message-----
From: Bob Friesenhahn [mailto:bfriesen@simple.dallas.tx.us]
Sent: Thursday, January 13, 2005 11:49 AM
To: Claude Houle
Cc: libTIFF (E-mail); Joris
Subject: Re: TIFF - Unknown field with tag 34665 ( Part 3 )


On Thu, 13 Jan 2005, Claude Houle wrote:

> Hi all,
>
> My first problem was due to CMYK Colorspace Problem and was easily =
fixed
> thanks to the clear insights of Mr. Jorris. Yet I have another problem
which
> I cannot seem to find what it is. And perhaps you will be able to see =
the
> problem when you see the pictures. Unfortunately, the pictures are =
pretty
> big, and there is a 40K Limit to the mailing list ( Believe I tried... =
).
>
> I uploaded a ZIP File to my personnal home page (
> http://www.darkwanderer.org/files/Sample2.zip ) which contain all the
> evidences gathered so far.
>
> The zip file contain :
>
> 1- The Original Adobe TIFF Image
> 2- A Screenshot from IMDisplay in action for  the TIFF File. ( You =
will see
> the picture degradation )
> 3- A Screenshot from GIMP ( What the picture should look like in =
IMDisplay
)

ImageMagick and GraphicsMagick have a bug.  No doubt about it.  Your=20
image uses 7 samples per pixel and IM/GM are mis-handling the extra=20
samples.

Maybe you can use tiffcp to produce a TIFF containing just 4 samples=20
per pixel so that ImageMagick loads it more correctly.

Bob
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
Bob Friesenhahn
bfriesen@simple.dallas.tx.us
http://www.simplesystems.org/users/bfriesen
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