关键词: 可视二维条码, 半色调图像, 纹理, 模式编码, 编码模式

Abstract: The authors proposed a new pattern encoding method of the visual 2D barcode based on halftone technology and texture features in halftone images. Combining the similarity of halftone texture with the distribution of encoded information in code-image, the authors also defined code-patterns to denote 0 and 1 and carried on pattern replacement to encode with the principle of consistency of local gray level. The experimental results show that the proposed method improves the encoding capacity and visual effect of coded images.

Key words: visual 2D barcode, halftone image, texture, pattern encoding, code-pattern