An application that can be used to hide "ascii text" or "images" into another image using watermark.
Video Example of usage:
how can use Matlab for text watermarking...
I'm using R2017a version?
what is the algoritmo in the watermark image. Help me pls
how to embed watermark on a picture by using matlab?
Can somebody please upload/comment an explanation of the algorithms used but in English? I can't understand the documentation file that's in Italian
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Time Complexity has to be reduced.
@Eric you are right! If you read the algorithm details it's clear that the image must remain unmodified after that a watermark is applied. This is just a simple example and it's obvious that if you need also robustness you should hide the information in another way (for example using a bi-dimensional cosine transformation) ;)
The program doesn't seem to work if 1) the numeric code is input, and 2) if the image is cropped in between watermarking and retrieval. At least my computer took ten minutes to work on a cropped image, before throwing an error. So if the scheme is meant to protect copyright, it can be defeated easily. If the coding scheme uses absolute position references, maybe it could be improved with relative positioning?
@kostas Matlab 7.7 or grater
@Abra_dog it's a steganographic watermarking (the information is kept secret)
It has error. I have matlab 7.1.
Does it run only on 7.7?
I don't quite understand this program. Am i suppose to be able to see the watermark?
Its a very good project, simple to understand, it cover watermarking and dewatermarking both which is not available in any sites.Good work.
a nice and simple program, a good starting point for the beginners to understand the basic principles of the watermarking technique.
Updated to include an App file for R2012b
only a brief modify on description box
only a correction to the summary
only add a screenshot!
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