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Getting absurd "Best guess" values. #12
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Hi @mazatov |
@0x09 , thanks for your reply. I'm trying to figure out if a soccer video was upscaled. I bet it's harder for the program because most of the image is just a green field. What would be the best way/settings to run the app with to get the most accurate results. |
@mazatov not sure doing this already, but for video it's probably best to extract 20 or so frames to y4m and provide that to resdet (there's some instructions for how to do this in the README.) |
@0x09 , thanks again for suggestions, I'm getting I generated Here's a zipped example generated with |
@mazatov ah in that case you'd need to install mjpegtools' libraries, otherwise resdet builds without y4m support. I took a look at the example and it's definitely too heavily compressed to identify with high confidence, but from the spectrogram I can make out signs of upscaling at 1440x810. resdet also identifies this with |
Thanks again @0x09. This is probably a dumb question, but I'm struggling to install I install magictools using
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@mazatov on Ubuntu you actually need the more specific libmjpegtools-dev package to get the relevant files for building against the mjpegtools libraries. |
@0x09 I got it to work, thanks! I couldn't find any info about BTW, I ran resdet on a big sample of 200 frames from the same video. The files is ~ 600 Mb! Here are the results. Results on 200 frames. I"m surprised to see it suggests that the resolution is most likely correct.
Results on just 1 frame:
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I'm getting some absurd "best guess" values. Any ideas what could be wrong?
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