基于Linux下的opencv库，实现bmp图片的灰度和二值化，适用于对有杂质的二维码进行处理。-Based on OpenCV under the Linux library, to achieve BMP image gray and binarization, suitable for the treatment of impurities in the two-dimensional code.

用于图片的查找，二值化，灰度化，车牌的定位，字符的分割，字符的识别。(For image search, two values, gray, license plate positioning, character segmentation, character recognition.)