| 摘要 |
PROBLEM TO BE SOLVED: To provide the emblem code which can be read mechanically by a computer and can represent its meaning in form that a human understands and it coding method. SOLUTION: Each cell 1 in a data are 10 constituting a two-dimensional code is given color information. Paying attention to lightness and a color as two feature quantities of color information, mechanically read information is represented by a difference in lightness (light and dark) and a design shape that a human can recognize is represented by a difference in color (green and yellow). Those two feature quantities are put on over the other, cell by cell, to multiply the mechanically read information and design shape. The meachanically read information is demodulation by extracting only feature quantities regarding the lightness from multiplied emblem codes. |
