Thanks to this website I know that when I use youtube-dl there is no quality loss at all when I download videos.

I picked up one video and I downloaded it in several formats/quality etc. I made n screenshot using Shutter in full screen of the video that is in the browser, and of the videos that I have downloaded (on VLC, screenshot made with Shutter), on same frame. I put all png picture files in one folder and switch between then back and forth. I see a slight difference.

Did I overlook something? Different colours (color space)?

  • Different decoders may treat video slightly different, and some may even apply filters to the videostream. – vidarlo Jun 5 '18 at 17:52
  • Do you have an idea how i can compare them the right way, so that i basically, if youtube-dl works as i thought, see no differents when I compare them? – net ist Jun 5 '18 at 19:19

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