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Re: imread (repost)
From: |
soren |
Subject: |
Re: imread (repost) |
Date: |
Tue, 05 Aug 2008 11:41:57 +0200 |
User-agent: |
Internet Messaging Program (IMP) H3 (4.2-RC2) |
Quoting Daniel J Sebald <address@hidden>:
address@hidden wrote:
Quoting Daniel J Sebald <address@hidden>:
100% transparent would be not visible, I guess. The applications
would be special effects or masking off a rectangular image to
make it appear of a different shape.
But what does 'not visible' mean? Should we just show the
background color of the figure?
Yes, whatever is behind the image (up to the point of plotting the
image) gets blended with the image. Wherever the image is 100%
transparent the contents behind it is completely visible, i.e.,
unaltered.
Currently (and also in matlab I believe) you can only view one image
at a time. So my question is basically, what is behind image? Say I
run the following
im = rand (100, 100, 4);
im (:, :, 4) = 1; # full transparancy
figure
imshow (im)
What should I expect to see?
Søren
- Re: imread (repost), (continued)
- Re: imread (repost), John W. Eaton, 2008/08/05
- Re: imread (repost), Thomas L. Scofield, 2008/08/05
- Re: imread (repost), John W. Eaton, 2008/08/05
- Re: imread (repost), John W. Eaton, 2008/08/06
- Re: imread (repost), Thomas L. Scofield, 2008/08/06
- Re: imread (repost), John W. Eaton, 2008/08/06
- Re: imread (repost), Bill Denney, 2008/08/05
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 <=
- 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, 2008/08/06
- 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