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A simple watermarking method for
color images is proposed. The proposed method is based on
watermark embedding for the histograms of the HSV planes
using visual cryptography watermarking. The method has
been proved to be robust for various image processing
operations such as filtering, compression, additive noise, and
various geometrical attacks such as rotation, scaling, cropping,
flipping, and shearing.
The watermark method is an excellent technique to protect the
copyright ownership of a digital image. The proposed watermark
method is built up on the concept of visual cryptography. According
to the proposed method, the watermark pattern does not have to be
embedded into the original image directly, which makes it harder to
detect or recover from the marked image in an illegal way. It can be
retrieved from the marked image without making comparison with the
original image. The notary also can off-line adjudge the ownership of
the suspect image by this method. The watermark pattern can be any
significant black/white image that can be used to typify the owner.
Experimental results show that the watermark pattern in the marked
image has good transparency and robustness. By the proposed method,
all the pixels of the marked image are equal to the original image.
Index Terms: Matlab, source, code, histogram, HSV, visual, cryptography, watermark, hue, saturation, value.
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Figure 1. Hue-Saturation-Value color space |
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A simple and effective source code for HSV Image Watermarking Scheme Based on Visual Cryptography. |
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Demo code (protected
P-files) available for performance evaluation. Matlab Image Processing Toolbox is required.
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Release |
Date |
Major features |
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1.0 |
2009.06.11 |
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We recommend to check the secure connection to PayPal, in order to avoid any fraud. This donation has to be considered an encouragement to improve the code itself. |
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HSV Image Watermarking Scheme Based on Visual Cryptography. Click here for
your donation. In order to obtain the source code you
have to pay a little sum of money: 200 EUROS (less
than 280 U.S. Dollars). |
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Once you have done this, please email us luigi.rosa@tiscali.it As soon as possible (in a few days) you will receive our new release of HSV Image Watermarking Scheme Based on Visual Cryptography. Alternatively, you can bestow using our banking coordinates:
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The authors have no relationship or partnership
with The Mathworks. All the code provided is written in Matlab
language (M-files and/or M-functions), with no dll or other
protected parts of code (P-files or executables). The code was
developed with Matlab 2006a. Matlab Image Processing Toolbox is required.
The code provided has to be considered "as is" and it is without any kind of warranty. The
authors deny any kind of warranty concerning the code as well
as any kind of responsibility for problems and damages which may
be caused by the use of the code itself including all parts of
the source code.
