extract progressive frames from dv file

["H.S." <hs.samix@gmail.com>]

Hello,

I am trying to extract individual frames from a dv file. I am able to
get the frames using the mplayer command:
$> mplayer -vo pnm:ppm foo.dv


However, I see that the frames I get are the odd and even frames and I
can see the motion artifacts in the two interlace frames.

Any idea how to combine a pair of interlacing frames during the
extraction process and get a progressive frame (one frame from the two
fields: odd and even) from the dv video file?

thanks,
->HS