Re: Movie clips to Mathematica

*To*: mathgroup at smc.vnet.net*Subject*: [mg73027] Re: Movie clips to Mathematica*From*: Urijah Kaplan <uak at sas.upenn.edu>*Date*: Tue, 30 Jan 2007 06:28:12 -0500 (EST)*Organization*: University of Pennsylvania*References*: <ephdvc$s4k$1@smc.vnet.net> <epkcq9$bq0$1@smc.vnet.net>

Two other Windows programs you can use are ffdshow (at least the recent build I have--check the "grab" filter) and TMPGEnc 4.0 XPress (Format->Sequential Still Pictures) TMPGEnc 4.0 supports WMV and MOV (ffdshow might also to some extent) and allows you to do batch encodes. --Urijah Urijah Kaplan wrote: > 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 >> >> >