Reversible color-to-gray mapping using subband domain texturization

  title={Reversible color-to-gray mapping using subband domain texturization},
  author={Ricardo L. de Queiroz},
  journal={Pattern Recognition Letters},
The concept of reversible conversion of color images to gray ones has been recently introduced. Colors are mapped to textures and from the textures the receiver can recover the colors. This was done using the wavelet transform and replacing high-frequency subbands by the down-sampled chrominance planes. The idea is to print a color image with a black and white printer and, then, at a later time, to scan the document and recover colors. In this paper, we propose to use a more robust method, i.e… CONTINUE READING
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