实用的matlab代码：中值滤波器；用Sobel算子和拉普拉斯对图像锐化；梯度算子检测边缘；LOG算子检测边缘；Canny算子检测边缘-Practical matlab code: median filter Sobel operator and Laplacian image sharpening gradient edge detection operator LOG operator to detect the edges Canny edge detection operator

读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，DCT，DST，DHT，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；图像增强里面的加噪声，平滑，锐化，伪彩色增强；图像分割里面的灰度阈值法，Robert，Laplace，sobel，prewitt，canny算子边缘检测法；图像恢复里面的直接逆滤波，维纳滤波；图像编码里面的霍夫曼编码-read the document, the geometric transf

完整的视频车辆检测的原理是首先通过图像采集系统采集视频图像，数字化，存入内存或帧缓存中；对数字图像进行预处理(滤波除噪、图像锐化、对比度增强)，从而减小噪声对图像质量的影响。(The principle of complete video vehicle detection is to collect video images from the image acquisition system first, digitize, save the memory or frame cache, an