车牌识别程序，使用sobel算子检测边缘，然后准确定位车牌，准确率高达98％以上。-license plate identification procedures, the use of pixel edge detection operator, and then accurate positioning plates, accuracy rate was as high as 98% or more.

sobel 边缘检测 是一种对边缘的检测 非常有效 有用的不方可以-sobel Edge detection ，it is a kind of edge detection.Very effectively useful not can try