A Hidden Line Algorithm For Halftone Picture Representation !
نویسنده
چکیده
Advanced Research Projects Agency Department of Defense ARPA order 829 Program code number6D30 Technical Report 4-5 John E. Warnock A HIDDEN LINE ALC~RITHH fOR HALFTONE PICTURE REPRESENTATION
منابع مشابه
Hidden images in halftone pictures.
A method of concealing an image in a different halftone image is proposed. Continuous-tone levels of the visible images are represented by the area of the halftone dots. However, the hidden image is encoded by the dots' positions inside their cells. Only a spatial correlator with a unique filter function can reveal the hidden image from the halftone picture. The technique and its robustness to ...
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