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A Fast And Efficient Method To Protect Color Images

Marc Chaumont 1 William Puech 1 
1 ICAR - Image & Interaction
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : 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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Submitted on : Friday, February 9, 2007 - 2:52:58 PM
Last modification on : Tuesday, September 6, 2022 - 4:56:39 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 9:35:03 PM



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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