车牌识别C++Builder代码，首先要把车牌图像灰度化，接着对图像进行中值滤波进行初步降噪，下一步进行Sobel纵向边缘检测，即增强车牌纵向边缘，边缘检测后进行二值化处理，此时车牌区域特征得到进一步加强，但同时又加强了背景中的部分噪声，所以再对其腐蚀，然后定位及截取车牌，最后对车牌进行二值化。

-LPR C Builder code, first and foremost, we should plates gray, Then the image median filtering for noise reduction preliminary, the next step for vertical Sobel edge detection, strengthening plates vertical edge, edge detection after binarization, then plates regional identity can be further strengthened, But at the same time strengthen the part of the background noise, the so-corrosion, and then positioning and interception of a registration number, Finally, the plates for the value of two.