Pseudo-random pattern image with an embedded hidden message perceived when vibrated T Hilano, T Kageyama, K Yanaka |
|---|
Faculty of Information Technology, Kanagawa Institute of Technology, Japan
|
| We report how to make an image with an embedded hidden message, which is perceived when we make the image vibrate. The process consists of three steps: (1) make a black and white bitmap image of a hidden message, (2) create two groups of figures of a fixed size that consists of two types of blocks with a random arrangement that satisfies the given conditions, and (3) create the final image by selecting the image belonging to the group corresponding to the color of each pixel of the bitmap image created at step (1) at random. Thus, the size of the final image is enlarged by the size of the blocks, i.e., the size of the blocks made at step (2) are t times t. Then, the size of the final image is enlarged to t times in both directions. We discuss the conditions in which the hidden message contained in this image is hard to perceive while it stands still and easy to perceive while we make it vibrate. The conditions under consideration are colors, sizes, and the ratio of the blocks mentioned at step (2) and the font that makes the hidden message. |
| Up Home |
|---|