Using mendable hough transform based on the contour - track ; detect the red indicator center position 利用改进的基于轮廓跟踪的哈夫变换定位红色指针的中心位置。
2.
The mendable canny operator based on the linear interpolation is used to pick up the edge of the pointer , the pointers ’ instructive direction is gotten via the circumference chord length detection method proposed by the article , then according to the central angle of pointer relative to the benchmark and conjunctive relation , the right reading is received the database information management system realizes the consumers ’ water fee management 利用基于线性插值的canny算子提取边缘,通过本课题提出的圆周弦长灰度检测法得到指针的指示方向,进而依据指针相对于基准的圆心角和关联关系正确读数。数据库信息管理系统实现对用户用水信息的管理,主要功能分三大模块:一
