对身份证图片进行的一些列图像预处理，包括边缘检测，直方图均衡化、规定化、最小滤波、中值滤波和模板法维纳法两种滤波方法-Some pictures of the identity column image pre-processing, including edge detection, histogram equalization, the provisions of the smallest filter, median filter and filter templates Fawei Na