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Invisible watermarks, video-embeddable data recode immune
Invisible watermarks, video-embeddable data recode immune is project number 559599
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Status: Cancelled
Selected Providers: -
Budget: $30-250
Created: 11/27/2009 at 10:55 EST
Bid Count: 4
Average Bid:
$ 253
12/02/2009 at 10:55 EST
Project Creator:
Joust
Employer Rating: (No Feedback Yet)
Description
I am looking for a creative solution to the following challenge:I need a simple video frame manipulation routine, that will embed given
information inside video in a way invisible to the viewer. The data has
to be able to survive through keyframes and recoding with resizing
(to some extent).
The routine is prefrably delivered as ffmpeg libavfilter plugin.
API: http://wiki.multimedia.cx/index.php?title=FFmpeg_video_API
Maximum amount of information that will be embedded: 256 bytes.
In case of questions, please contact me.
I will promptly respond to all queries.
Thank you!
Additional information submitted:
11/27/2009 at 14:31 EST:
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The job got even easier. Below is a link for source code (C/C++) of commonly used invisible watermark algorithms.
http://www.cosy.sbg.ac.at/~pmeerw/Watermarking/source/
I still need a coder that will implement the watermarking as a libavfilter filter.
I have attached a sample filter that puts a logo on video frames. It can be used as a reference for learning frame-level manipulation via the mentioned API.
Additional files submitted:
vf_logo.c
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