It seems that "emotion" and "emotion" are likely to be empty for black and white videos.

I use two black and white video which full of emotions to test. However, "emotions" and "sentiments" of videos are empty. (you can find these vedio on and



    Thank you for reaching out. Video Indexer detects emotions based on speech content and voice tonality. It doesn't rely on facial expressions. Please refer to this blog formore information: And, VI documentation: Thanks.
    Posted by Hidden Sun, 03 Mar 2019 14:20:31 GMT

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