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You should be able to convert the faxes directly- that's what I'm doing,
only with TIFF faxes instead. The distortion comes from faxes having
different pixel resolutions in the X and Y dimensions. Do an identify on
one and examine the resolution, should provide clues to what you need to do.
Here's a snippet of perl code I use to convert my faxes (as well as many
other types of documents:
$imgfile = Image::Magick->new;
$x = $imgfile->Read("/tmp/$$.$img[1]");
$density = $imgfile->Get('density');
$density =~ /(\d+)x(\d+)/;
$xres = $1; $yres = $2;
$xper = 90/$xres*100;
$yper = 90/$yres*100;
`/usr/local/bin/convert /tmp/$$.$img[1] -filter Box -resize
$xper%x$yper% -colors 16 -append /tmp/$$.gif`;
The trick is to scale differently in the x and y dimensions- this script
resizes it based on the different resolutions, to maintain the original
aspect ratio. Let me know if you have any questions.
And yes, I know I could do the convert through perlMagick too, but I'm a
lazy and busy programmer. That'll be in the next release!
- ----- Original Message -----
From: "Brian Johnson" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, June 13, 2006 8:58 AM
Subject: [magick-users] trouble with -page
> I've been happily using
>
> convert -page Letter test.pbm test.ps
>
> for years to process G3 faxes received via mgetty (and subsequently
> converted
> to .pbm) but a recent upgrade to ImageMagick-6.0.7.1-14 on Centos 4.x has
> produced blank printouts when printing through CUPS (also recently
> upgraded to
> cups-1.1.22-0.rc1.9.10)
>
>
> It looks like in the cups error logs that it doesn't think that the .ps
> format
> is correct
>
>
>
> convert -geometry 612x792 test.pbm test.ps
>
> works but doesn't produce very good results. The .pbm has crisp lines but
> the
> .ps looks like it has a gray shading bordering all the black. The end
> result
> is that it looks out-of-focus and hard to read.
>
>
> I also tried a few attempts at converting the G3 faxes directly to .ps
> using
> convert but the scaling was way off
>
>
> Can anyone provide some tips?
>
> _______________________________________________
> Magick-users mailing list
> [email protected]
> http://studio.imagemagick.org/mailman/listinfo/magick-users
>
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