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A Grey-Level Image Embedding its Color Palette

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 its corresponding grey-level image. The objective of this work is to allow free access to the greylevel image and give color image access to secret key owners. This method is made of two steps which are the color image decomposition (in a grey-level image and its associated color information) and the data-hiding. The main contribution of this papper is the energetic function proposed to model the decomposition of the color image. The optimization of the proposed energetic function leads to the obtention of an index image and a color palette. The good properties of that decomposition are an index image which is similar to the luminance of the color image and a color palette which is well suit for the data-hiding. The obtained results confirm the model quality.
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Submitted on : Monday, December 17, 2007 - 2:57:39 PM
Last modification on : Friday, October 22, 2021 - 3:07:32 PM
Long-term archiving on: : Monday, April 12, 2010 - 8:10:40 AM


  • HAL Id : lirmm-00198526, version 1



Marc Chaumont, William Puech. A Grey-Level Image Embedding its Color Palette. ICIP: International Conference on Image Processing, 2007, San Antonio, TX, United States. pp.389-392. ⟨lirmm-00198526⟩



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