Questions tagged [watermarking]

Designed to be invisible, digital watermarking is the process of hiding information in digital media files, like images, videos and audio clips. Watermarking is heavily used in copyright protection of digital media.

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Verify that data submitted by user was produced by my app

I'm designing an app (for PC), that is intended to run on users' machines and generate a file with some data. The user will then upload the file to the server, and I want to verify that this file has ...
Peter Trifanov's user avatar
0 votes
2 answers
165 views

Eliminating possible watermarking done by text editors

On which text editor is it easiest to prevent and/or eliminate watermarking? Pre-installed malware that defeats anonymity being used on an airgapped system can be made ineffective, at least partially,...
Patriot's user avatar
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1 vote
3 answers
446 views

Per-User Image DRM for Finding a Leaker? [duplicate]

I'm managing a client that distributes their users images and files through one source. My background is heavily in development as opposed to security, and I'm of course familiar with some tricks that ...
sterbenz's user avatar
1 vote
0 answers
837 views

Can someone hack printer/photocopiers or buy printers/photocopiers that doesn't obey EURion constellation security measure

I'm not into counterfeiting. There was a debate.., so I decided to go deeper with curiosity. EURion constellation is a pattern incorporated into banknotes. So photocopiers and printers if they obey ...
kelalaka's user avatar
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-1 votes
2 answers
288 views

How to identify the user who revealed private mp3 to public? [duplicate]

I have a service that serves mp3 files to a small circle of people. In the case of a revelation, how could I know who had done that? What technology could I use to sign every copy of the mp3 files ...
MIkhail Kilianovski's user avatar
-1 votes
2 answers
230 views

App to prove that an image is not edited

I want to prove that a photo I will take has not been edited. So I am planning to implement an open source app which uses a "strict image authentication" technique using private key cryptography as ...
Agnel Vishal's user avatar
6 votes
1 answer
825 views

Do digital cameras perform steganography / watermarking?

It is well documented that one should consider that all modern printers perform steganography / watermarking in the back of their users. Is such a feature also documented / are there rumors of similar ...
Zorglub29's user avatar
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0 votes
1 answer
674 views

What is the mechanism to protect photos uploaded on social media? [closed]

I know water mark the photograph is one method to protect ones copyright over the picture. is there any other technique through which one can prevent or detect the plagiarism of photos.
Sumo's user avatar
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6 votes
1 answer
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How to find out if our files are digital watermarked?

How do we find out if our files (audio, images, pdf, videos) are digital watermarked by the distributors?
user160411's user avatar
0 votes
1 answer
129 views

Invisible, Non-invertable, public, robust, replicated watermarking scheme?

Is there a watermarking scheme for images and audio that is: Invisible - should be imperceptible for a human. Non-invertable - cannot be removed by any means without the original. Robust - in order ...
user47376's user avatar
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1 vote
0 answers
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Flow watermarking / fingerprinting

It is known that flows can quite easily be fingerprinted and watermarked [1] (usually observing or adding jitter to packets). Let's say someone added a watermark to my flow which then passes through a ...
worxli's user avatar
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1 vote
1 answer
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Digital watermarking for detecting Copyright infringement - video file of customer A and B have same SHA Checksums?

Sometimes I buy in a online shop video files (mp4). The online shop forces it's customers to buy with verified real name. In case of leaking his content the shop can identity who leaked it. I don't ...
Sybil's user avatar
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34 votes
5 answers
8k views

Is it possible to embed information that is both nearly invisible to the naked eye and decodable from an external camera?

I am interested in watermarking a video for copyright purposes. The requirements are as follows: The watermark must be barely noticeable to the naked eye. The watermark must be able to be extracted ...
Zac R.'s user avatar
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6 votes
2 answers
3k views

Hidden digital watermark in a website which can survive .jpg screenshots?

I'm trying to embed a secret watermark in a website so that I can link any screenshots to the user who created them. The page looks something like this: It has a custom background (user can change it ...
Gavriil Pascalau's user avatar
0 votes
1 answer
387 views

Is possible to apply an inverse function to remove a compiled object?

I create a watermark with photoshop like this To make this watermark I use a software functions of a software (for example photoshop). Functions is implement like set instructions (my variables) a, ...
Jacky Ned's user avatar
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1 answer
668 views

Bachelor's degree transcript (Marks Sheet) and Certificate Watermarking

Earlier, I mistakenly wrote that question in academia.stackexchange.com. Now pasting the same question after someone told me that its relevant to this forum. I am from Pakistan and considering to ...
Nadir Aziz's user avatar
3 votes
1 answer
243 views

Does Skype use audio watermarking?

Today on CNN they conducted an interview with a career criminal, who spoke by Skype on condition of anonymity. It occurred to me that, if Skype uses digital watermarking to embed identifying ...
Psychonaut's user avatar
0 votes
2 answers
148 views

How to steganograph ownership information into members uploaded images?

Considering a social website where members upload images which at times can be very similar - is there a way that images can be 'branded' steganographically with (salted+encrypted) text that ...
Bendy's user avatar
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