From help-octave-request at bevo dot che dot wisc dot edu Sun Aug 24 05:45:39 2003
Subject: Re: quicktime in octave
From: Per Persson <persquare at mac dot com>
To: charo <Rosario dot Balboa at ua dot es>
Cc: help-octave at bevo dot che dot wisc dot edu
Date: Sun, 24 Aug 2003 12:44:45 +0200


On Friday, August 22, 2003, at 05:32 PM, charo wrote:
>  I've been looking at Apple's web and it seems that is not possible to 
> use quicktime api on Linux.

There are some free/open alternatives, e.g. libquicktime at 
http://libquicktime.sourceforge.net/

> I'm a linux user with no idea of api programming.
> Is there any easy way to read/write frames with other programs and 
> then read the frames with octave?

You could use some program to convert the movie to a sequence of images 
in whatever format you prefer.
I'm afraid I can't provide a pointer to such a program for Linux, but 
I'm sure there are a number of options.

If you can get hold of a Mac or a Windows machine, download Quicktime 
and upgrade it to "Pro" version ($30). You can then do export a movie 
as an image sequence.

> I just need to do some simple calculations using every three frames on 
> a movie.

Well, once you have an image sequence, read it into octave and do 
whatever you please. Octave-forge provides some additional functions 
for reading images. See http://octave.sourceforge.net/index/ , look 
under Image processing.

/Per

>
> Your advice is truly appreciated. Thanks,
>
> Rosario
>



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