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Conference Papers Year : 2006

A Color Image Hidden in a Grey-Level Image

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 the color quantization, the ordering and the data hiding. The originality of this paper is to build an {\em indexed image} which is, in the same time, a semantically intelligible grey-level image. In order to obtain this particular {\em indexed image}, which should be robust to data hiding, we propose an original $K$ color ordering algorithm called the {\em layer running algorithm}.
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Dates and versions

lirmm-00123583 , version 1 (10-01-2007)


  • HAL Id : lirmm-00123583 , version 1


Marc Chaumont, William Puech. A Color Image Hidden in a Grey-Level Image. CGIV: Colour in Graphics, Imaging and Vision, Jun 2006, Leeds, United Kingdom. pp.226-231. ⟨lirmm-00123583⟩
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