>
>On Mon, 28 Jan 2002 18:17:26 +0100
>Henning Hraban Ramm <[EMAIL PROTECTED]> wrote:
>
> > e.g. I use a bitmap logo that should show exactly the same color as
> defined
> > for backgrounds. If I define the "same" color with PhotoShop it looks
> > slightly different. Further I'd like to place it white on color.
>
>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?
>
>
>On Tue, 29 Jan 2002 21:01:16 +0100
>Hans Hagen <[EMAIL PROTECTED]> wrote:
>
> > At 06:17 PM 1/28/2002 +0100, Henning Hraban Ramm wrote:
>
> > >It should as easy as in other functions to assign foreground and
> background
> > >color, maybe even transparency?
> >
> > when i browsed the specs some time ago i got the impression that this is
> > doable, but so far i didn't need it (although i will probably need it
> > soon). Building ther sources is trivial (once i understand it) and we can
> > probably hook things into the resource dict of graphics, but cooking up a
> > proper interface will take me some time. We can look into the specs at the
> > coming dante meeting to see what can be done.
>
>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.
>
>Best,
> Jens
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