Multi-level Threshold Method of Quick Response Code
快速响应矩阵码的多级阈值化方法*

In order to adapt quick response code image to various sizes and gray-level values,as well as different lighting sources,a novel multi-level thresholding method is developed,which locates the accurate finder pattern and integrates local threshold method with global threshold.It can achieve higher recognization rate of high density bar code,and is applicable to real world scene image.