A DCT-based data-hiding method to embed the color information in a JPEG grey level image

@article{Chaumont2006ADD,
  title={A DCT-based data-hiding method to embed the color information in a JPEG grey level image},
  author={Marc Chaumont and William Puech},
  journal={2006 14th European Signal Processing Conference},
  year={2006},
  pages={1-5}
}
In this paper, we propose an original method to embed the color information of an image in a corresponding compressed grey-level image. The objective of this work is to allow free access to the compressed 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 DCT-based data hiding. The novelty of this paper is to build an indexed image which is, in the same time, a semantically… CONTINUE READING
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