search

yahoo / hecate

Automagically generate thumbnails, animated GIFs, and summaries from videos
Apache License 2.0
482 stars 115 forks source link

Output quality is low? #25

Closed arianaa30 closed 5 years ago

arianaa30 commented 5 years ago

Interesting work. I compiled and was trying the video summarization, but noticed it reduces the output resolution/quality significantly. Any ways we can preserve the input resolution?

yalesong commented 5 years ago

Thanks! Yes, to preserve the original resolution you can specify --mov_width_px -1 (or --jpg_width_px -1 or --gif_width_px -1 depending on what your output format is). When the value is negative, it will copy the input resolution. See these lines in include/hecate/hecate.hpp and these lines in src/hecate/hetace_main.cpp for more information.

arianaa30 commented 5 years ago

Great! So right now the selection is based on "dynamism" score, right? Do you have any recent work or consider improving based on deep models to score "interestingness" or something?

yalesong commented 5 years ago

Some people have already tried incorporating deep nets to replace the scoring mechanism, reporting improved performance (I don't think they published a paper, but I know that version is deployed in production). I personally don't have an immediate plan to do so, unfortunately.