[FFmpeg-user] Watermarking vs. Lossy compression (Was: coding video for some old Sony)

[Henning Thielemann]

On Tue, 13 Aug 2019, Moritz Barsnick wrote:

> On Tue, Aug 13, 2019 at 14:03:31 +0200, Ulf Zibis wrote:
>> I can imagine, that there is a chance to alienate the watermark by
>> rescaling the video or other filtering.
>
> "Real" watermarking should be resistent to this, upto the point that
> you need to "ruin" the video (or audio, for that matter) to get rid of
> it.

Off topic: I always wondered how "real watermarking" is able to survive 
even lossy compression, but is still invisible. Wouldn't this mean that 
the lossy compression is not good enough? A compressor should be able to 
eliminate the invisible artifacts for more compression gain, shouldn't it?