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RE: Horizontalized scores


From: Chris Crossen
Subject: RE: Horizontalized scores
Date: Tue, 18 Feb 2014 14:13:57 -0700

> Chris Crossen <address@hidden> wrote:
> > The trick to getting the crisp horizontal and vertical lines while
> > still getting anti-aliased curves is the ghostscript option -
> dGraphicsAlphaBits.
> > When Lilypond produces a .png file it set this to 4. If you set it to
> > 1 instead, you get horizontal and vertical lines that aren't
anti-aliased.
> >
> > I have attached two images showing the difference. crisp.png was
> > produced with -dGraphicsAlphaBits=1 and blurry.png was produced with
> > -dGraphicsAlphaBits=4.

> Tim Roberts:
> But did you notice that the stems in your PNG are not all the same
thickness?
> The G and A stems are 1 pixel, and the rest are 2 pixels.
> Is that an acceptable trade-off for you?
> 
> --
The stem width differences aren't a problem for me. But, in an earlier post,
David Kastrup pointed out that the circles around string numbers are not
anti-aliased and are very jaggy.

I think I'll continue using GIMP to extract the images from PDFs.




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