| 摘要 |
PURPOSE: A 2D(Dimensional) color bar code system is provided to prevent the forgery, the alteration, the steal, and the outflow of personal information by combining and encrypting an image and a text, and encoding it as the 2D color bar code having a proper size through compression. CONSTITUTION: An encryption tool(12) combines and encrypts the image and the text, and encrypts and encodes it as the compact 2D bar code. A printer(14) applies the 2D bar code to an ID card, a credit card, and a passport by applying the color during a process encoding the 2D bar code. A reader scans the 2D bar code. A decoder decodes the scanned 2D bar code. An output tool displays the decoded image and text.
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