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  1. Member
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    Search Comp PM
    I have a snapshot of a frame in a video, and want to use it to locate the video source on my hard drive.
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  2. Not going to happen.
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  3. Member
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    I can only hope that someone else thinks differently. There are tantalising hints of the possibility in the cybersphere; in fact one thread claimed that commercial programs had been found, but 'he' wanted a free one. Sadly, 'he' did not mention which paid-for items filled the bill.
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  4. Member
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    Give Video Comparer a try. There's a limited function free version. Make the snapshot into a repeating short video and it may find the video in thorough mode. I don't know how accurate it is, but I use the Pro version and it finds dupe scenes of a few seconds.
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  5. Banned
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    Same problem happened to me few years ago. I had to watch every single video I saved until u found the right one
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  6. Member
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    Lingyi - I have tried the Video Comparer, and am at a loss as to how to select the snippet to find its 'long' video source. I seem to be able to only select folders. There does not appear to be a useful HELP file to get me started. Can you help ?
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  7. Member
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    AFAIK, it's not possible to select individual videos to compare. Put your snippet on the drive you're searching and let it run. It will search all the folders for a match. Be patient as it can take a long time perform the search, especially in thorough mode.
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  8. Member
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    The procedure you describe is obvious. The snippet IS already on the drive - but how do I identify the snippet to COMPARE, and then how do I tell Compare which drive/folder to search in ? That is a TWO step process and I have NO idea how to start it.
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  9. Member
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    I'm not sure what the confusion is. As shown on this page https://www.video-comparer.com/product-screenshots.php, you choose the directory/folders on the left that has the videos you want to compare. You don't choose the individual videos, only the entire directory or folder.

    Anyway, I just checked and did a test and it probably won't work for you. The minimum duplicate length is 10 seconds. Settings>Advanced. I thought it was shorter because it will tag multiple scenes as dupes. I ran a test with shows that have preview snippets of the next episode and it didn't tag them. I also tried comparing an alternative version of a scene from a TV show and it didn't tag that either.
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  10. Member
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    Three things have happened.
    Once you mentioned comparing videos rather than searching for a video from a snapshot, I realised that in the particular need I have RIGHT NOW, I have a long enough segment of the complete video to look for the complete one.
    I decided to look for a user guide and found one - WITH AN EMAIL address for technical support. I also saw that the basic function is to look for ANY duplicates on a drive, as distinct from finding a particular one that matches another.
    I have sent off an email asking the 'publishers' if their product can be made to do what I want - else if they know of a product that might.
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  11. Member
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    Good luck and keep us updated on your results.
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  12. Member DB83's Avatar
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    If this video is a commercial film, you might be better off uploading a still or two. You never know someone might recognise it or at least provide some pointers.
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  13. Member
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    I've had a reply to my inquiry. It said that the feature I want is not available in the free version.
    Google had an entry '21 alternatives to Video Comparer' - I am about to launch into testing those alternatives.
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  14. What the OP is trying to do is not possible, at least not in any practical way.

    He wants a piece of software that is capable of "looking" at a single still screenshot/snapshot and match it to a movie he has on his hard drive.

    If he had an actual frame, in theory, he could put together a script that used ffmpeg to compare said reference frame to each individual frame of each video and then include logic in the script that when a PSNR ratio higher than a certain value was returned and/or an SSIM value closer to 1 than a given percentage was calculated, said movie was flagged as the likely match.

    But he states he has a "snapshot" of a single frame, maybe he could try facial recognition software but the stuff law enforcement uses is not available to the public and the open source variants, as far as I know, exist only as libraries that he would need to incorporate into an application he created.

    As I said, for all intents and purposes, it's not going to happen.
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  15. Member
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    I revised my original statement - I do have a film clip (more than just a snapshot) of the complete video I want. Does that make it more feasible ?
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  16. I'm a Super Moderator johns0's Avatar
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    Just do a search for .mkv,.mp4 etc...,it will show up.
    I think,therefore i am a hamster.
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  17. I've used an AviSynth script to locate an sample image in a video file. It could be used in a batch file to search all videos in a folder or on a drive. But the sample frame must not be cropped. It also must not be too "distorted" by filtering or compression artifacts.
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  18. If I were tasked with this, i'd be writing a script in python or another language to input all videos, break the video into individual frames, then analyze each frame image with one of those image comparison libraries against the sample image.

    I think you're going to have to build something yourself. Cool utility though. Maybe if I get free time i'll build it.
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