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Author Topic: Invisible watermark for DCPs.
Rayjohn Tagayon
Film Handler

Posts: 25
From: Taytay, Rizal, Philippines
Registered: Sep 2016


 - posted 09-22-2016 05:39 AM      Profile for Rayjohn Tagayon   Email Rayjohn Tagayon   Send New Private Message       Edit/Delete Post 
Is there any plugin nowadays for Davinci Resolve, etc. That can burn in invisible watermarks to digital cinema packages as an anti piracy measure?

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Dave Macaulay
Film God

Posts: 2321
From: Toronto, Canada
Registered: Apr 2001


 - posted 09-22-2016 08:19 AM      Profile for Dave Macaulay   Email Dave Macaulay   Send New Private Message       Edit/Delete Post 
Probably, but what's the point? If you find your movie on a DVD-R at a flea market you know it was pirated. Adding a watermark won't add any clue on its source - unless you render each distribution copy individually... not likely unless your release goes to under a dozen screens.
The standard digital cinema image and audio watermarks are generated in the server media block during playback: they will reveal the server serial number and show date/time of a pirated copy. That info is somewhat useful, I suppose.

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Stephan Shelley
Jedi Master Film Handler

Posts: 854
From: castro valley, CA, usa
Registered: Nov 2014


 - posted 09-22-2016 01:05 PM      Profile for Stephan Shelley   Email Stephan Shelley   Send New Private Message       Edit/Delete Post 
All DCI servers can enable a watermark that gives the serial number of the media block. One can trace back the source through it. I think you will find that most piracy comes from post production often in the form of screeners rather than from the cinemas.

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Rayjohn Tagayon
Film Handler

Posts: 25
From: Taytay, Rizal, Philippines
Registered: Sep 2016


 - posted 09-23-2016 12:41 AM      Profile for Rayjohn Tagayon   Email Rayjohn Tagayon   Send New Private Message       Edit/Delete Post 
Say I only want to watermark one or two copies to be sent abroad. Where do I go from there? Thanks for you replies.

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Stephan Shelley
Jedi Master Film Handler

Posts: 854
From: castro valley, CA, usa
Registered: Nov 2014


 - posted 09-23-2016 02:25 AM      Profile for Stephan Shelley   Email Stephan Shelley   Send New Private Message       Edit/Delete Post 
Your DCP authoring program should be able to turn it on or off or maybe it has to be encrypted and the key turns it on for the server.

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Carsten Kurz
Film God

Posts: 4340
From: Cologne, NRW, Germany
Registered: Aug 2009


 - posted 09-29-2016 05:53 PM      Profile for Carsten Kurz   Email Carsten Kurz   Send New Private Message       Edit/Delete Post 
If it's encrypted, then video and audio become watermarked during playout on any DCI compliant projection systems.

If you issue a KDM for a 'DCI compatible only' (not DCI *compliant*) system - like some software players that support playing encrypted DCPs - then no watermarking will be applied (unless that specific software has that option).

But what's the point? How do you think you will be able to use these watermarks for your purpose afterwards? They are invisible and inaudible, they won't prevent your content being shot or recorded. You could only find out afterwards where the leak was...

Watermarking is useful for studios/distributors since they have many releases and are interested to find possible leaks to prevent further piracy. For a single, limited release, it is useless.

- Carsten

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