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  1. 4th Nov 2020 18:13 #1
    Master Tape
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    Here's an example/comparison.

    Original
    Image
    [Attachment 55738 - Click to enlarge]

    YouTube
    Image
    [Attachment 55739 - Click to enlarge]

    As you can see the colour looks washed out, desaturated and darker. I should note the original file was of SD resolution but i deinterlaced and upscaled to 720p so i could enable 720p50 on YouTube to get the full motion of video. The colour space of the source file is YUV.

    What can i do to keep the original colours?
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  2. 5th Nov 2020 02:26 #2
    lordsmurf
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    I don't see washed or loss of saturation.
    But what I do see is red got orange-y. That suggested "rec." color changes.
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  3. 5th Nov 2020 02:26 #3
    lomero
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    this section of forum is about "Video Streaming Downloading" ...

    write your question to Youtube support ...!
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  4. 5th Nov 2020 13:03 #4
    Master Tape
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    Originally Posted by lordsmurf View Post
    I don't see washed or loss of saturation.
    But what I do see is red got orange-y. That suggested "rec." color changes.
    I was thinking the same. I wonder if uploading something in 720p HD means Youtube flag it up and change it to rec.709 after uploading? Since the original video is SD rec.601. Is there anything i can do so Youtube doesn't change the original colour? (other than uploading in 480p which i really don't want to do due to the framerate change)
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  5. 5th Nov 2020 13:09 #5
    davexnet
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    You can convert rec601 > rec709 in your script, using colormatrix or similar
    Code:
    ColorMatrix(mode="Rec.601->Rec.709")
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  6. 5th Nov 2020 17:26 #6
    Master Tape
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    Originally Posted by davexnet View Post
    You can convert rec601 > rec709 in your script, using colormatrix or similar
    Code:
    ColorMatrix(mode="Rec.601->Rec.709")
    Thanks! Pretty much spot on now.

    Original
    Image
    [Attachment 55747 - Click to enlarge]

    Youtube with colormatrix conversion
    Image
    [Attachment 55748 - Click to enlarge]
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