光学字符识别（optical character recognition）是模式识别研究的一个热点，被广泛地应用在车牌识别、身份证号码识别、护照识别等领域。手写数字识别是光学字符识别技术的一个分支，它研究如何利用计算机自动辨认手写的阿拉伯数字。通过对手写阿拉伯数字的图像预处理和特征提取，在matlab环境下进行了利用基于最小错误率的贝叶斯分类器对手写的阿拉伯数字识别分类的实验。
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