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Re: Movie clips to Mathematica

  • To: mathgroup at
  • Subject: [mg73010] Re: Movie clips to Mathematica
  • From: Urijah Kaplan <uak at>
  • Date: Mon, 29 Jan 2007 03:55:31 -0500 (EST)
  • Organization: University of Pennsylvania
  • References: <ephdvc$s4k$>

I don't think Mathematica can import video. I suggest you use a program 
like VirtualDub that can save a video clip to image bitmaps. It even has a 
command line version for doing batches (I have not tried that myself). You 
can also write (or use others') scripts and filters for it. It only 
handles AVI and MPG. You can probably use Quicktime or Quicktime Pro to 
either save MOV as image bitmaps or to a format Virtualdub understands, 
and perhaps a Windows Media Encoder program for WMV.

I don't know what you mean by "time frame"--skip a certain fraction and 
save a frame? e.g. skip every third frame in a 30fps clip so you save 
every tenth of a second?

                  --Urijah Kaplan

Robert Pigeon wrote:
> Greetings,
> 	Here is what I want to do:
> 1) I have video clips (*.avi or *.wmv or *.mov or whatever) that are about 2
> sec long
> 2) I need to analyze the video frame by frame (frames could be every 0.1
> sec)
> 3) The analysis is segementation to find the area of a portion of the frame.
> The geometry is the same from frame to frame except that the area I need to
> calculate shrinks from frame to frame.
> Questions:
> 1) can I "Import" a video clip into Mathematica ? (doc says *.gif but I cant
> find anything else)
> 2) if so, how can I break the video into frames ?
> 2) if not possible, do you know of any program that could save a video clip
> as frames (I would like to specify the time frame) ?
> Thanks,
> Robert
> Robert Pigeon
> TZ = -5

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