车牌检测与识别技术的相关技术：

提出一种梯度增强法对图像边缘进行增强,

该方法主要通过对图像本身信息进行简单梯度变换以突出图像边缘,

并辅以数学形态学中的膨胀法实现牌照的快速定位. 在字符分割部分,

给出了最小面积旋转法以确定牌照的最佳旋转角,

并采用垂直投影法分割牌照中的字符

-License plate detection and recognition technology related technologies: a gradient-enhanced method of image edge enhancement, the method of the image itself, mainly through a simple gradient transform information in order to highlight the image edge, supplemented by mathematical morphology in the expansion of law implementation License Express location. in the character segmentation part, give a minimum area of rotation method to determine the best rotation angle license and using the vertical projection of the character segmentation license