ZXing是一个开源Java类库用于解析多种格式的1D/2D条形码。目标是能够对QR编码、Data Matrix、UPC的1D条形码进行解码。 其提供了多种平台下的客户端包括：J2ME、J2SE和Android。 ,ZXing is an open-source, multi-format 1D/2D barcode image processing library implemented in Java. Our focus is on using the built-in camera on

通过一张图片基于张正友标定的2D视觉标定，其结果为一个单应性矩阵，基于Opencv的角点提取，标定的计算是自己编写，内有注释和原理，已在工程实践中得到应用。-Zhang Zhengyou based 2D calibration for camera calibration by a picture, the result is a homography, extraction based on corner Opencv, the calibration is calculated to wr