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From: Andrey Kiselev <dron@ak4719.spb.edu>
To: Tiff mailing list <tiff@remotesensing.org>
Subject: Re: [Tiff] change fax resolution
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Date: Thu, 22 Jan 2004 10:39:59 +0300
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On Thu, Jan 22, 2004 at 03:13:12AM +0100, Joris wrote:
> > 2 - Reduce the height to 50%, so I get a PNG image of 1728x1140
> > using something like ImageMagick
> Alternatively, you could do the resampling yourself. It's really not
> that difficult, and can be very fast, since you reduce each group of 2
> pixels to a single pixel. But of course, doing just that, you end up
> with 3 different grayscale values including black and white, instead
> of just black and white.

Why not just skip every 2nd line in the input image? It should give
similar results, I guess.

						Andrey

-- 
Andrey V. Kiselev
Home phone:  +7 812 5274898  ICQ# 26871517
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