Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: Movie quality?
Replies: 3   Last Post: Aug 10, 2000 10:48 AM

 Messages: [ Previous | Next ]
 Daniel Thuresson Posts: 70 Registered: 12/7/04
Re: Movie quality?
Posted: Aug 10, 2000 9:35 AM

Hi Jordan,

I'm using Matlab 5.3 and MakeQTMovie from April 10, 2000. So I guess I have the
Here's how I make a movie:
---------------------------------------------------------
MakeQTMovie start testfilm.mov
MakeQTMovie ('quality',1)
MakeQTMovie ('framerate',5/dt)
figure
axis([min(min(xx)) max(max(xx)) min(min(yy)) max(max(yy)) min(min(T_res))
max(max(T_res))]);
for j=1:5:t
for i=1:elr+1
temp(:,i) = T_res(nodes_temp+(i-1),j);
end
surf(x_coord,y_coord,temp);
view(110,35)
end % for j=1:t
MakeQTMovie finish
---------------------------------------------------------
Am I doing anything wrong here?

Thanks
Daniel

Jordan Rosenthal wrote:

> Daniel,
>
> What version of MakeQTMovie are you using and what version of Matlab? I
> have created good quality rotating surf plots with various lighting options
> using that function.
>
> If you are using Matlab 5.3 and later versions of MakeQTMovie, then you
> should be able to get good results because the image frames in the movie use
> truecolor. This is especially true if you use a high quality factor
> (0.8-1.0). If you are using Matlab 5.2 or earlier, then the image frames
> use indexed color so the results may not be as good depending on the plots
> you make. I would need to see an example, however, to really be able to
>
> Jordan
>
> "Daniel Thuresson" <dante@mvd.chalmers.se> wrote in message
> news://39928953.6E72978F@mvd.chalmers.se...

> > Hi,
> >
> > I'm having problem getting high quality on a movie. I've tried using
> > both MakeQTMovie and MPGWRITE, with different settings. The thing I'm
> > trying to capture is a series of meshes, prefferably in colour.
> > At present no matter what settings I use and how large the movie-file
> > gets, the quality/resolution of the movie is poor.
> > Does anyone have any suggestions?
> >
> > Thanks
> > Daniel
> >

Date Subject Author
8/10/00 Daniel Thuresson
8/10/00 Jordan Rosenthal
8/10/00 Daniel Thuresson