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Image Processing Signal Processing Mathematica

Analyzing .mov video file for RGB color

Posted 11 years ago

Hi, I am a newbie to Mathematica, just started yesterday. I am trying to import a .mov video file, convert it to images and analyze it for RGB color. But when I do Import["/Users/apple/Downloads/Sample-7.MOV", "ImageList"] Mathematica crashes. Can anyone please help me with how to go about this, thanks in advance

POSTED BY: greenchic

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Posted 11 years ago

Perhaps the (uncompressed) imported data exceeds you memory capacity. Try importing just a frame or a few frames. Import["/Users/apple/Downloads/Sample-7.MOV", {"ImageList", 1}] Import["/Users/apple/Downloads/Sample-7.MOV", {"ImageList", Range[1, 10]}] Without a reproducible example, it's hard to know if this is exactly the issue or not.

POSTED BY: Michael Rogers

Posted 11 years ago

It's certainly possible (http://blog.wolfram.com/2013/08/13/a-visit-to-disneys-magic-kingdom/) to analyze movies frame by frame. According to that blog post, each movie took a day to process. But I think that Mathematica likes to load everything into memory where possible, so movies are going to be difficult to work with unless you divide them into smaller pieces. Try loading a few frames at a time, as Michael suggested. It's also possible that the MOV file has problems - many things go into a MOV container...

POSTED BY: C ormullion

Posted 11 years ago

I have done something similar to this but rather than importing the .mov file I had better luck exporting each frame of the movie to a folder of still images and than running the analysis on the stills.

POSTED BY: Jon Rogers

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