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  1. Member
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    Hello,

    I know how to hide a watermark logo with VLC player, it's ok;
    but my favorite player is MPC-HC, and I don't know how to do the same thing.

    I searched with avisynth+, I found a solution, but half satisfed, I would like to included filter in mpc-hc like VLC does,
    without avisynth, which is rather designed to re-encode the video.

    Do you know a way to remove a logo in real time with MPC-HC ?
    Last edited by redscreen; 20th Jun 2020 at 08:43.
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  2. You can play an AviSynth script with MPCHC.
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  3. Member
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    It's true, but the sound is no more "direct stream" -> no more bitstream AC3 5.1, and all my files have to write their index, so a little bit long...
    With VLC it's flawless, and I would like the same, if possible with MPC-HC, with a plugin or a filter I still don't know...

    And I ask about that if this filter exist.
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  4. Another way is to install ffdshow, enable the "Raw video" decoder, and configure the Logoaway filter. Or it's AviSynth filter option.
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  5. You can mask the logo with a pixel shader in mpc-hc and recenter image (or mask with corner box):
    https://forum.videohelp.com/threads/397797-Pixel-shaders-for-video-playback-%28-hlsl%29

    This is not equivalent to Avisynth DeLogo or the built-in features in ffdshow and VLC that requires providing and precise positioning a mask file. Mpc-hc doesn't have this feature built-in.
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  6. Member
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    Thanks for your solutions.

    It's true, I forgot about ffdshow as it is no more developped since 6 years ago and no more installed on my computer...

    I'll look your bAR_Mask.hlsl too, thank you.

    Before that , I searched for a "Avisynth+ solution", but as I can't have my bitstream audio, I little gave up... :

    DeLogo is 32bit only...
    DeLogoHD is too complicated to create the mask in .lgd format:
    I was trying to understand how "InpaintDelogo" works...
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  7. bar_Mask.hlsl v1.1

    has MaskCrop: similar to vlc crop (the simplest solution is often to crop the logo)
    and MaskBox + first pixel horiz dynamic fill (set Mode to 21): similar to VLC remove logo without providing an actual Mask file.

    In the general case removing logos from a compressed video is not a simple problem, because logos are rarely a single color, and not always at the same place.
    Last edited by butterw; 21st Jun 2020 at 06:03.
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  8. Originally Posted by redscreen View Post
    I was trying to understand how "InpaintDelogo" works...
    <edit>
    Oops, I just noticed you were talking about InpaintDelogo, not InpaintLogo. The instructions below are for the latter.
    </edit>

    The basics are pretty simple. You need to supply a mask that marks where the logo is, then call InpaintLogo() with that mask.

    You can always export a frame and edit it in a paint program to create a mask. But an easier is to find a completely black frame (aside from the logo), then use that as your mask.

    Code:
    LWlibavVideoSource("video.mkv")
    logo = Trim(43666,43666).mt_binarize(30).mt_expand().mt_expand(chroma="-128")
    InpaintLogo(mask=logo, radius=10.0)
    I used the defaults for everything here except radius.

    A black frame with logo:
    Image
    [Attachment 53884 - Click to enlarge]


    Converted to a mask with Trim(43666,43666).mt_binarize(30).mt_expand().mt_e xpand(chroma="-128"):
    Image
    [Attachment 53885 - Click to enlarge]


    A frame before Inpaint:
    Image
    [Attachment 53886 - Click to enlarge]


    After Inpaint:
    Image
    [Attachment 53887 - Click to enlarge]


    In some parts of the video it works well, in others not so well.

    Of course, this particular logo is semi-transparent and would be better removed with an unblending.
    Last edited by jagabo; 21st Jun 2020 at 12:32.
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