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From: Hans Hagen <pragma@wxs.nl>
Cc: ntg-context@ntg.nl
Subject: Re: Fwd: Re: colorizing
Date: Sun, 03 Feb 2002 19:23:50 +0100	[thread overview]
Message-ID: <5.1.0.14.1.20020203192255.02c385b0@server-1> (raw)
In-Reply-To: <200202021849.g12In9c07984@nathir.fiee.lan>

At 07:49 PM 2/2/2002 +0100, Henning Hraban Ramm wrote:
> > >I have tried this using a RGB-PNG-image above a Metapost-image
> > >including only a rectangle filled with the background-color
> > >of the PNG-image. I can see no difference between both backgrounds.
> > >Is your image in cmyk or in rgb?
>
>RGB. But it may be a matter of color management, as Hans assumed.
>
> > >i think not all can be done on TeX-level. For example the alpha-channel
> > >in png or tiff-images, it would be nice when pdftex could support this
> > >directly.
>
>Try PDF! At least clipping paths are working.

if you can find out the right snippets of pdf code needed .. or make stand 
alone pdf graphics illustrating the principle ... this is how i could 
figure out transparency: make a file in AI and look at the pdf code.

Hans
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      parent reply	other threads:[~2002-02-03 18:23 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-01-31  9:32 Hans Hagen
2002-02-02 18:49 ` Henning Hraban Ramm
2002-02-03 10:51   ` Jens-Uwe Morawski
2002-02-03 18:23   ` Hans Hagen [this message]

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