An Anti-fake Bitmap Graphic Encoding and Decoding Method for Commodity Packaging

The paper is to enhance the angle of rotation and marking points as well as to increase the recover rate after random damage. We will make a redundant symmetric image and encode for every bit image, connecting to the raw data of commodity. The corresponding information is saved in data base for decoding and tracing back. Using the information of data base and the encoding rules, we could read the raw commodity data. At the same ink jet quantity, the method in the paper is better than the bit number and space availability.