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Re: imread (repost)
From: |
Thomas Weber |
Subject: |
Re: imread (repost) |
Date: |
Wed, 06 Aug 2008 09:21:05 +0200 |
Am Dienstag, den 05.08.2008, 12:43 -0500 schrieb Daniel J Sebald:
> Bill Denney wrote:
> > I would expect to see the axis background color. If the axis background
> > color is set to none, then I would expect to see the figure background
> > color. I believe that if you set the figure background color to none in
> > matlab, you see a cross-hatched pattern. When exporting, I would
> > anticipate that the graphics backend would take alpha into account
> > relative to the output device, so if the output was to ps or pdf, it
> > would convert the background color to the color as visible on the screen.
> >
> > I'm not saying that this is easy, just that-- to me-- the above is the
> > right way to do it.
>
> In my opinion, the right way is for PostScript to handle alpha
> blending. Wish it would. It's the easiest place to implement such a
> feature, i.e., at the last step just blend the contents together.
I'm not sure I understand, but Postscript seems to support an alpha
channel:
http://tug.org/PSTricks/main.cgi?file=Examples/Colors/colors#transparency
The code example needs a development version of pstricks.
The main problem is that most postscript _viewers_ don't handle
transparency, so one usually converts to PDF.
Thomas
- Re: imread (repost), (continued)
- imread (repost), Daniel J Sebald, 2008/08/05
- Re: imread (repost), soren, 2008/08/05
- Re: imread (repost), Daniel J Sebald, 2008/08/05
- Re: imread (repost), soren, 2008/08/05
- Re: imread (repost), Bill Denney, 2008/08/05
- Re: imread (repost), soren, 2008/08/05
- Re: imread (repost), Daniel J Sebald, 2008/08/05
- Re: imread (repost), Shai Ayal, 2008/08/05
- Re: imread (repost), Daniel J Sebald, 2008/08/05
- Re: imread (repost),
Thomas Weber <=
- Re: imread (repost), Daniel J Sebald, 2008/08/06
- Re: imread (repost), Daniel J Sebald, 2008/08/05
- Re: imread (repost), Przemek Klosowski, 2008/08/05