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To: Andrey Kiselev <dron@at1895.spb.edu>
cc: tiff@olympiakos.com
Subject: Re: Error message with tiffcp 
In-reply-to: <20021001104931.GB10534@at1895.spb.edu> 
References: <KMEPJAGMPIPGPEGGMMPDAEODCHAA.mujtaba@bitsmart.com> <20021001104931.GB10534@at1895.spb.edu>
Comments: In-reply-to Andrey Kiselev <dron@at1895.spb.edu>
	message dated "Tue, 01 Oct 2002 14:49:31 +0400"
Date: Wed, 02 Oct 2002 01:16:04 -0400
Message-ID: <19792.1033535764@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
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Andrey Kiselev <dron@at1895.spb.edu> writes:
> On Mon, Sep 30, 2002 at 06:09:28PM -0400, Mujtaba Ali wrote:
>> JPEGSetupEncode: BitsPerSample 1 not allowed for JPEG.

> JPEG compression of the 1-bit image planes are not supported by the libtiff.

With good reason: JPEG is completely useless for 1-bit-per-pixel images.

You might have better luck with one of the fax-style compression
methods (G3 or G4).

			regards, tom lane
			organizer, Independent JPEG Group

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