对图像进行增强处理的车流量检测算法，图像锐化，背景差分，膨胀腐蚀等一系列数学形态学操作-The image enhancement processing of the traffic flow detection algorithm, image enhancement, background difference, expansion and a series of mathematical morphology erosion operation

求矩阵腐蚀，膨胀的算法，以及梯度、平滑和高帽变换运算。-Matrix erosion, dilation of the algorithm, and the gradient, smoothing and hat transformation operations.