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Conference Papers Year : 2007

A Fast And Efficient Method To Protect Color Images

Marc Chaumont
William Puech


In this paper, we propose a method to embed the color information of an image in a corresponding grey-level image. The objective of this work is to allow free access to the grey-level image and give color image access only if you own a secret key. This method is made of three major steps which are a fast color quantization, an optimized ordering and an adapted data hiding. The principle is to build an index image which is, in the same time, a semantically intelligible grey-level image. In order to obtain this particular index image, which should be robust to data hiding, a layer running algorithm is proceeded to sort the K colors of the palette. The major contributions of this paper are the fast color quantization, the optimized layer running algorithm, the color palette compression and the adapted data hiding.
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Dates and versions

lirmm-00130160 , version 1 (09-02-2007)



Marc Chaumont, William Puech. A Fast And Efficient Method To Protect Color Images. Electronic Imaging, Jan 2007, San Jose, CA, United States. pp.65081T, ⟨10.1117/12.702741⟩. ⟨lirmm-00130160⟩
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