help to remove watermark on live video

[nikolaos1983]

hi guys i need your help to remove(cover) a moving watermark that appears for few seconds.any advise or help would be greatfull.
cheers

[poisondeathray]

Can you clarify what you mean by "live video" ? Web? Broadcast ? Live studio feed ?

[nikolaos1983]

its broadcast

[poisondeathray]

What are you referring to? Sending or Receiving end ? Some background info or context would be helpful

[nikolaos1983]

its live capture and streaming

[nikolaos1983]

someone that knows how to do it with any c++ ?

[MaverickTse]

If the watermark in not very large , sitting at the center of the screen or moving around randomly, then you may consider to use a subtitle remover.(AviUtl and Virtualdub have this)
or, apply blur/mosaic and then sharpen, on the watermarked area. For automatic tracking of the mark, you may need AfterEffect. If you do not mind doing the marking by hand every a few frames(if moving randomly), AviUtl do this for free.

[pandy]

Introduce delay buffer, pattern recognition (in fact can be simple and real time), place own watermark over unwanted watermark.

No i don't know software that doing this but you can easily find some developer who create such software for you as primitives are more or less widely available (samples of code, libraries etc).

[nikolaos1983]

someone thas is expert and want to give some help.i will help him also

[nikolaos1983]

i tried video effect but there is no option how to add from the capture card or add a streaming link.someone knows?

[MaverickTse]

If you must handle the video stream real-time and cannot be saved and processed later, check the OpenCV and SimpleCV libraries (for C++ and Python 2.7)

[pandy]

Perhaps ffmpeg code can be used, there is capture support, there processing part, some things related to character recognition (pattern recognition can be used). Instead removing watermark, perhaps is is better (for sure way faster) to paint (overlap/overlay) non transparent own watermark over existing one - then with some tracking algorithm (to follow original watermark) working code can be created.
This is not easy but also with all resources already existing should be possible in reasonable time.
And yes, perhaps i'm very optimistic as not a developer.