From: RHjorth <renehjorth@...>
Date: 2008-03-25T23:24:53+09:00
Subject: Re: RMagick convert EPS to PNG => poor quality

Hi Tim,

Absolutely brilliant - thanks!

/René

On 25 Mar., 14:27, Tim Hunter <rmag...@gmail.com> wrote:
> RHjorth wrote:
> > Hi all,
>
> > After some initial troubles having RMagick (and ImageMagick) working
> > on windows, it finally works and quite well I might add.
>
> > However when convertin a EPS (yes, a barcode) to PNG (and rotating it)
> > the quality are unusable poor - the code for doing it are faily
> > simple:
>
> > psc = Magick::ImageList.new(ps_name)
> > psc.density = "300x300"
> > psc = psc.rotate(270)
> > psc.write(im_name)
>
> > I think the density are ignored.
>
> > What else am I doing wrong?
>
> > Please help me out here :)
>
> This is a tricky conversion that typically generates a lot of questions
> in the ImageMagick forum. The problem is that the Ghostscript fonts
> aren't designed for low-resolution devices like monitors.
>
> Try specifying the density when reading the image, like this:
>
> psc = Magick::Image.read(ps_name) { self.density = "300x300" }.first
>
> If that doesn't help, open a Support Request on the RMagick project on
> RubyForge and attach a copy of your EPS file. I'll be glad to take a
> look and consult with the IM developers if necessary.
>
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