Abstract
We tried to embed almost invisible information on cloth (fiber material) in our research. To realize this, we utilize ‘’Artificial fiber pattern’’ that is considered to embed information with suppressing uncomfortable feeling for human eyes. But, this method is only developed for paper. In this study we verify that ‘’Artificial fiber pattern’’ can be applied to cloth by scanner, still image, and video image. Then it turned out to be the different examination characteristic between fiber material and paper. After applying the special noise filter, we get the sufficient information extraction accuracy from the video image which is considered to be the most difficult.