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Old 29th July 2013, 19:05   #1  |  Link
benw
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extracting date/time stamp

I have a 640x480 .avi film clip that has a date/time stamp. Is there anyway to extract that from the .avi file and relate it to the frame number?

I have attached a sample image.

Thanks!

Ben
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Old 30th July 2013, 23:28   #2  |  Link
IanB
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Seeing the date/time stamp is in the form of pixels on the image you are going to need some form of OCR.

Take a look at how DVD subtitles get ripped. The job here looks trivial, black background, white text, numeric only, fixed position, ...
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Old 31st July 2013, 01:36   #3  |  Link
benw
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Thanks!

If I ocr it can the date/time stamp be related to the frame number?
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Old 31st July 2013, 03:07   #4  |  Link
IanB
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Well you need to decode the frames in order to be able to OCR the pixels representing the timecode texts, so I think it's pretty much a given. i.e. decode frame 1234, OCR the bottom centre region, that timecode goes with frame 1234, rinse, repeat.
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Old 31st July 2013, 03:17   #5  |  Link
mariner
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Try AviSubDetector 0.6.0.7 beta

http://www.free-codecs.com/AviSubDetector_download.htm
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Old 31st July 2013, 14:29   #6  |  Link
benw
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AviSubDetector 0.6.0.7 beta looks great. Is there a manual that explains how to use all the tools available?

Thanks!

Ben
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Old 31st July 2013, 15:29   #7  |  Link
mariner
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Try this:

http://www.wxfs.org/guides/HowtoRipt...ubDetector.pdf
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