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| sameguy |
| Posted: Nov 22 2011, 04:34 PM |
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Newbie
Group: Members
Posts: 1
Member No.: 33638
Joined: 22-November 11
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Hey guys,
i have the following problem: I have a logo that needs to be identified, as well as the 15 seconds leading up to it. Essentially what i want is a movie that contains clips leading up to this logo.
Is there any way to do this in virtualdub? Maybe together with autoit?
basically what can i do to make this happen?
cheers,
edit:
Can i search within a file for a certain pixel value programmatically and it tells me the frame? I think that could help me with the solution. |
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| videocrack |
| Posted: Feb 19 2012, 12:39 PM |
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Member
Group: Members
Posts: 27
Member No.: 26678
Joined: 27-December 09
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to search a certain pixel value in a video is possible (I don't know if there's a filter for VD though). However, usually a single pixel value is found not just in a certain frame but in quite a number of frames and also in different locations of a frame. It's different with a logo, there you have a number of pixels which will only be found in those frames (and locations of the frame) where the logo is found and that's what I guess you want to find, right? Anyway, if you're familiar with C++ and OpenCV you could do that with cvMatchTemplate. That's a function which allows you to detect a certain template (your logo) in a video. Whenever the logo is detected your program would display the respective frame number or do whatever you want it to do with that frame. |
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