车牌识别是我国实现智能交通的重要课题，车牌汉字识别是实现车牌识别的难点。进行车牌汉字识别前的车牌定位与分分、灰度归一化和尺度归一化等预处理工作，提取特征，运用模式识别算法实现车牌汉字识别，并给出实验结果。-Our license plate recognition is an important subject intelligent transportation, license plate character recognition is the difficulty to achieve recognition. License plate character recognition license plate location before the minutes with the experimental results, the gray-scale normalization and normalization and other preprocessing, feature extraction, pattern recognition algorithm using license plate character recognition is also given.